subject:(liquid crystals)

1. McCamley, Maureen K. Development of a Liquid Crystal Biosensor for the Detection of Endotoxin.

Degree: PhD, Biomedical Engineering, 2009, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:149/

► This dissertation describes translational research conducted to develop a rapid diagnostic for the detection of endotoxin using liquid crystal sensor technology. Due to the elastic… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McCamley, M. K. (2009). Development of a Liquid Crystal Biosensor for the Detection of Endotoxin. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:149/

Chicago Manual of Style (16^th Edition):

McCamley, Maureen K. “Development of a Liquid Crystal Biosensor for the Detection of Endotoxin.” 2009. Doctoral Dissertation, Brown University. Accessed February 24, 2020. https://repository.library.brown.edu/studio/item/bdr:149/.

MLA Handbook (7^th Edition):

McCamley, Maureen K. “Development of a Liquid Crystal Biosensor for the Detection of Endotoxin.” 2009. Web. 24 Feb 2020.

Vancouver:

McCamley MK. Development of a Liquid Crystal Biosensor for the Detection of Endotoxin. [Internet] [Doctoral dissertation]. Brown University; 2009. [cited 2020 Feb 24]. Available from: https://repository.library.brown.edu/studio/item/bdr:149/.

Council of Science Editors:

McCamley MK. Development of a Liquid Crystal Biosensor for the Detection of Endotoxin. [Doctoral Dissertation]. Brown University; 2009. Available from: https://repository.library.brown.edu/studio/item/bdr:149/

Hong Kong University of Science and Technology

2. Ma, Ying. Electrically suppressed helix ferroelectric liquid crystal and its applications.

Degree: 2015, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-86346 ; https://doi.org/10.14711/thesis-b1487608 ; http://repository.ust.hk/ir/bitstream/1783.1-86346/1/th_redirect.html

► By making use of the unique properties of liquid crystal materials, liquid crystal displays (LCDs) as well as many other liquid crystal photonic devices have… (more)

▼ By making use of the unique properties of liquid crystal materials, liquid crystal displays (LCDs) as well as many other liquid crystal photonic devices have been playing an important role in serving our daily life. Many LC devices need to have fast response time as well as good electrooptical properties. Ferroelectric liquid crystal, well known for its fast response time, can be a good candidate for a variety of applications. A new proposed FLC mode called electrically suppressed helix (ESH) FLC is characterized by fast response, high contrast ratio, good mechanical stability with low driving voltage has attract of much attention. In this thesis, the properties for ESH FLC are introduced in detail and polymer stabilized ESH FLC have been proposed to further stabilize the optical properties to make it suitable for some applications. By using the ESH FLC, two optical element structures are produced: gratings and fork gratings. For gratings, we have demonstrated the switchable and optical rewritable grating structure based on FLCs with ultra-fast switching speed and high diffraction efficiency at small electric field. The response time of 50^µs at 6.67V/μm has been achieved. Two modes are demonstrated: GRATING/OFF mode and GRATING/TRANSMISSION mode. The proposed grating can be erased, re-written optically for different grating profiles with simple steps. Theoretical calculations have been made for both modes and the FLC cone angle effect on diffraction efficiency is discussed in detail to further explain the advantage of this material. All the experimental results fit the theoretical calculations very well. For fork gratings, we have demonstrated the switchable fork grating structure based on FLCs with ultra-fast switching speed and high diffraction efficiency at small electric field. Two modes are introduced: FORKGRATING/OFF mode and FORKGRATING/TRANSMISSION mode. Furthermore, using DMD system provides us a very easy way to fabricate the fork grating cell with very high alignment quality. We believe this method shows great potential to find application as element for projection display, Pico-projectors and various photonic elements. Another approch is that we propose a new type of display-field sequential color display based on ESH FLC which shows many advantages. The main obstacle for this kind of display is that it requires fast response time LC to eliminate color breakup. So we proposed the display cell with ultra fast response time and good electro-optical properties. We manage the display quality in many ways to get the best contrast ratio, color gamut, response time and stability. Two different display modes have been introduced. For transmissive mode, we have given the results for many display parameters and shown good quality of our display cell. We also build up our own prototypes including prototypes of manually changing colors, automatically changing colors and the multiple pixels display. For reflective mode, we have obtained some preliminary results which can show its fast response time with…

Subjects/Keywords: Ferroelectric crystals ; Liquid crystals ; Liquid crystal devices

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ma, Y. (2015). Electrically suppressed helix ferroelectric liquid crystal and its applications. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-86346 ; https://doi.org/10.14711/thesis-b1487608 ; http://repository.ust.hk/ir/bitstream/1783.1-86346/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ma, Ying. “Electrically suppressed helix ferroelectric liquid crystal and its applications.” 2015. Thesis, Hong Kong University of Science and Technology. Accessed February 24, 2020. http://repository.ust.hk/ir/Record/1783.1-86346 ; https://doi.org/10.14711/thesis-b1487608 ; http://repository.ust.hk/ir/bitstream/1783.1-86346/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ma, Ying. “Electrically suppressed helix ferroelectric liquid crystal and its applications.” 2015. Web. 24 Feb 2020.

Vancouver:

Ma Y. Electrically suppressed helix ferroelectric liquid crystal and its applications. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2015. [cited 2020 Feb 24]. Available from: http://repository.ust.hk/ir/Record/1783.1-86346 ; https://doi.org/10.14711/thesis-b1487608 ; http://repository.ust.hk/ir/bitstream/1783.1-86346/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ma Y. Electrically suppressed helix ferroelectric liquid crystal and its applications. [Thesis]. Hong Kong University of Science and Technology; 2015. Available from: http://repository.ust.hk/ir/Record/1783.1-86346 ; https://doi.org/10.14711/thesis-b1487608 ; http://repository.ust.hk/ir/bitstream/1783.1-86346/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

3. Wang, Kejie. On the Separation and Composition of Liquid Crystals in Athabasca Bitumen.

Degree: MS, Department of Chemical and Materials Engineering, 2015, University of Alberta

URL: https://era.library.ualberta.ca/files/2j62s7420

► Hydrocarbon-based liquid crystal domains have been identified in unreacted heavy fractions of petroleum from Athabasca bitumen and other hydrocarbon resources worldwide. These liquid crystal domains… (more)

Subjects/Keywords: Liquid Crystals; Bitumen

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, K. (2015). On the Separation and Composition of Liquid Crystals in Athabasca Bitumen. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/2j62s7420

Chicago Manual of Style (16^th Edition):

Wang, Kejie. “On the Separation and Composition of Liquid Crystals in Athabasca Bitumen.” 2015. Masters Thesis, University of Alberta. Accessed February 24, 2020. https://era.library.ualberta.ca/files/2j62s7420.

MLA Handbook (7^th Edition):

Wang, Kejie. “On the Separation and Composition of Liquid Crystals in Athabasca Bitumen.” 2015. Web. 24 Feb 2020.

Vancouver:

Wang K. On the Separation and Composition of Liquid Crystals in Athabasca Bitumen. [Internet] [Masters thesis]. University of Alberta; 2015. [cited 2020 Feb 24]. Available from: https://era.library.ualberta.ca/files/2j62s7420.

Council of Science Editors:

Wang K. On the Separation and Composition of Liquid Crystals in Athabasca Bitumen. [Masters Thesis]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/2j62s7420

Louisiana State University

4. Collins, Melissa Elizabeth. Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals.

Degree: PhD, Chemistry, 2013, Louisiana State University

URL: etd-10172013-230022 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3706

► Silica-polypeptide hybrid particles are core-shell colloids. Established synthetic methods ensure uniformly sized cores and provide the ability to have magnetic or fluorescent inclusions. The polypeptide… (more)

Subjects/Keywords: liquid crystals; colloids

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Collins, M. E. (2013). Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-10172013-230022 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3706

Chicago Manual of Style (16^th Edition):

Collins, Melissa Elizabeth. “Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals.” 2013. Doctoral Dissertation, Louisiana State University. Accessed February 24, 2020. etd-10172013-230022 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3706.

MLA Handbook (7^th Edition):

Collins, Melissa Elizabeth. “Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals.” 2013. Web. 24 Feb 2020.

Vancouver:

Collins ME. Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals. [Internet] [Doctoral dissertation]. Louisiana State University; 2013. [cited 2020 Feb 24]. Available from: etd-10172013-230022 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3706.

Council of Science Editors:

Collins ME. Phase behavior of silica-polypeptide hybrid particles immersed in cholesteric liquid crystals. [Doctoral Dissertation]. Louisiana State University; 2013. Available from: etd-10172013-230022 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3706

Indian Institute of Science

5. Deepak, H S vinay. NMR Investigations Of Oriented Systems : Novel Techniques And Applications.

Degree: 2007, Indian Institute of Science

URL: http://hdl.handle.net/2005/1077

► This thesis presents results of novel methodologies applied to oriented systems. Both pure liquid crystalline materials as well as molecules oriented in liquid crystalline matrices… (more)

▼ This thesis presents results of novel methodologies applied to oriented systems. Both pure liquid crystalline materials as well as molecules oriented in liquid crystalline matrices have been studied. In particular this thesis presents investigations related to various aspects of NMR in liquid crystalline media, such as, assignment of resonances and the study of director dynamics of spinning liquid crystals in different phases and with different symmetry. Simplified methods for structure determination of solutes dissolved in liquid crystal solvents have been proposed. Diffusion ordered spectroscopy has been used to study a mixture of liquid crystals of opposite diamagnetic susceptibility at its coexistent phase. The methods presented represent novel techniques to characterize the liquid crystalline phase. NMR spectroscopy which has become a method of choice for understanding ordering mechanisms of mesogens requires a robust method for obtaining assignments of the NMR spectra of various nuclei that are found in the mesogens [1, 2]. It turns out that the spectra in the isotropic phase and in the nematic phase of a liquid crystal molecule are very different due to the presence of chemical shift anisotropy in the mesophase spectrum. There are a host of methodologies available for assigning spectra in the isotropic phase [3]. These methods however fail, when applied to the spectrum of the molecules in the mesophase due to the dominating role of strong anisotropic interactions, such as homonuclear couplings among protons. Problems arising while assigning spectral lines of liquid crystals in their nematic phase have been dealt with in chapter 2. To circumvent these problems, a property of the liquid crystal molecules under off-magic angle sample spinning can be utilized. It has been shown by Courtieu et al. [4] that the director/symmetry axis of a Δχ + ve liquid crystal aligns along the spinning axis for θ between 0 ° and θm, where θ is the angle between the spinning axis and the magnetic field and θm = 54.7° is the magic angle. It may be noted that the spectrum of θ = 0° spinning angle corresponds to the normal static spectrum, while the spectrum of θ = θm corresponds to the isotropic spectrum. In an earlier study, Teearr et al. [5] had recorded the 13C liquid crystal spectra as a function of very closely spaced θ values from 90° all the way up to 0°. From these plots of chemical shift versus the angle of spinning, it is possible to follow the trajectory of each 13C line from its position from θ = θm to θ = 0° and then match the spectrum in the isotropic phase (equivalently the magic angle sample spinning spectrum of the nematic phase) to the spectrum of the static sample in the nematic phase. However this method requires recording spectra at closely spaced angle intervals, so that one can unambiguously follow the trajectory of each of the lines without missing out any crossover of trajectories. However, this operation is time consuming. In this thesis we propose an alternate method, where we utilize the fact that the above… Advisors/Committee Members: Ramanathan, K V.

Subjects/Keywords: Nuclear Magnetic Resonance; Liquid Crystals; Anisotropy; Biaxiality; Lyotropic Liquid Crystals; Thermotropic Liquid Crystals; Liquid Crystals - NMR Spectroscopy; Nematic Liquid Crystal; Magnetism

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Deepak, H. S. v. (2007). NMR Investigations Of Oriented Systems : Novel Techniques And Applications. (Thesis). Indian Institute of Science. Retrieved from http://hdl.handle.net/2005/1077

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Deepak, H S vinay. “NMR Investigations Of Oriented Systems : Novel Techniques And Applications.” 2007. Thesis, Indian Institute of Science. Accessed February 24, 2020. http://hdl.handle.net/2005/1077.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Deepak, H S vinay. “NMR Investigations Of Oriented Systems : Novel Techniques And Applications.” 2007. Web. 24 Feb 2020.

Vancouver:

Deepak HSv. NMR Investigations Of Oriented Systems : Novel Techniques And Applications. [Internet] [Thesis]. Indian Institute of Science; 2007. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2005/1077.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Deepak HSv. NMR Investigations Of Oriented Systems : Novel Techniques And Applications. [Thesis]. Indian Institute of Science; 2007. Available from: http://hdl.handle.net/2005/1077

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

6. Wang, Lu. Novel liquid crystal devices for display and photonics based on non-uniform alignment.

Degree: 2012, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-7780 ; https://doi.org/10.14711/thesis-b1198654 ; http://repository.ust.hk/ir/bitstream/1783.1-7780/1/th_redirect.html

► Liquid Crystal (LC) is widely used in the Display industry. Currently most of televisions, phones, computers and other electronic devices implement Liquid Crystal Displays (LCDs).… (more)

Subjects/Keywords: Liquid crystals ; Liquid crystals – Optical properties ; Liquid crystal displays

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, L. (2012). Novel liquid crystal devices for display and photonics based on non-uniform alignment. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7780 ; https://doi.org/10.14711/thesis-b1198654 ; http://repository.ust.hk/ir/bitstream/1783.1-7780/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Lu. “Novel liquid crystal devices for display and photonics based on non-uniform alignment.” 2012. Thesis, Hong Kong University of Science and Technology. Accessed February 24, 2020. http://repository.ust.hk/ir/Record/1783.1-7780 ; https://doi.org/10.14711/thesis-b1198654 ; http://repository.ust.hk/ir/bitstream/1783.1-7780/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Lu. “Novel liquid crystal devices for display and photonics based on non-uniform alignment.” 2012. Web. 24 Feb 2020.

Vancouver:

Wang L. Novel liquid crystal devices for display and photonics based on non-uniform alignment. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2012. [cited 2020 Feb 24]. Available from: http://repository.ust.hk/ir/Record/1783.1-7780 ; https://doi.org/10.14711/thesis-b1198654 ; http://repository.ust.hk/ir/bitstream/1783.1-7780/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang L. Novel liquid crystal devices for display and photonics based on non-uniform alignment. [Thesis]. Hong Kong University of Science and Technology; 2012. Available from: http://repository.ust.hk/ir/Record/1783.1-7780 ; https://doi.org/10.14711/thesis-b1198654 ; http://repository.ust.hk/ir/bitstream/1783.1-7780/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

7. Fan, Fan. Liquid crystal patterned photoalignment : methods and applications.

Degree: 2013, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-81412 ; https://doi.org/10.14711/thesis-b1255441 ; http://repository.ust.hk/ir/bitstream/1783.1-81412/1/th_redirect.html

► The liquid crystal alignment is mainly defined by azimuthal angle and pretilt angle. The patterned alignment can have spatially variable azimuthal angles or pretilt angles.… (more)

▼ The liquid crystal alignment is mainly defined by azimuthal angle and pretilt angle. The patterned alignment can have spatially variable azimuthal angles or pretilt angles. The general application of the patterned alignment layer is to spatially modulate light properties like phase, polarization and intensity. Photoalignment technology is today, one of the most promising technologies for use in the preparation of the patterned alignment structure. In order to prepare a patterned photoalignment layer in the azimuthal direction, polarized light is normally used. When different areas of the photoalignment layer are exposed to light with different polarizations, the patterned photoalignment layer is formed. In order to provide methods that are easy and simple for photo-patterning, four methods are studied in this thesis. These four methods will design different photo masks for generation light with spatially varying polarization using patterned quarter-wave plate, patterned half-wave plate, twisted nematic liquid crystal cell and a multi-retarder system, respectively. To verify the properties of these four methods, a series of optical elements are made and tested. By combining the patterned photoalignment technology with the nematic or ferroelectric liquid crystals, electrically tunable liquid crystal devices can be produced. To evaluate the performance of these tunable devices, tunable Dammann gratings have been made and tested, using both nematic and ferroelectric liquid crystals. The results show that the tunable Dammann gratings can be switched between diffractive and non-diffractive states. The technology of patterned photoalignment in the pretilt direction is also studied in this thesis. A new photoalignment material called CPL024 is used in the research. The photoalignment material has the property whereby the aligned pretilt angle can be tuned in the range of 10 to 890 under different light exposure energies. Using this material, circular and cylindrical tunable liquid crystal lenses are fabricated and tested.

Subjects/Keywords: Liquid crystals ; Liquid crystal displays ; Optical properties ; Polymer liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fan, F. (2013). Liquid crystal patterned photoalignment : methods and applications. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-81412 ; https://doi.org/10.14711/thesis-b1255441 ; http://repository.ust.hk/ir/bitstream/1783.1-81412/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fan, Fan. “Liquid crystal patterned photoalignment : methods and applications.” 2013. Thesis, Hong Kong University of Science and Technology. Accessed February 24, 2020. http://repository.ust.hk/ir/Record/1783.1-81412 ; https://doi.org/10.14711/thesis-b1255441 ; http://repository.ust.hk/ir/bitstream/1783.1-81412/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fan, Fan. “Liquid crystal patterned photoalignment : methods and applications.” 2013. Web. 24 Feb 2020.

Vancouver:

Fan F. Liquid crystal patterned photoalignment : methods and applications. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2013. [cited 2020 Feb 24]. Available from: http://repository.ust.hk/ir/Record/1783.1-81412 ; https://doi.org/10.14711/thesis-b1255441 ; http://repository.ust.hk/ir/bitstream/1783.1-81412/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fan F. Liquid crystal patterned photoalignment : methods and applications. [Thesis]. Hong Kong University of Science and Technology; 2013. Available from: http://repository.ust.hk/ir/Record/1783.1-81412 ; https://doi.org/10.14711/thesis-b1255441 ; http://repository.ust.hk/ir/bitstream/1783.1-81412/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

8. Chang, Ya-Wen. Discotic Liquid Crystals and Polymersomes: Molecule Goniometers.

Degree: 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11635

► Controlling the assembly of amphiphilic molecules and micron-sized, disk-shaped particles at different length scales into ordered structures enables bottom-up organization which is of great interest… (more)

▼ Controlling the assembly of amphiphilic molecules and micron-sized, disk-shaped particles at different length scales into ordered structures enables bottom-up organization which is of great interest to emerging technologies based on structured materials. The primary object of this work is the investigation of structure forming components - Zirconium phosphate (ZrP) discotic particles and polymersomes/ amphiphiles on their self-assembly and interactions. The effect of bilayer architecture of polymersomes on surface reactivity was investigated via fluorescent probing method. Established through complementary experiments, correlation between reactivity and molecule diffusivity in polymer-rich environment revealed the mechanism of reduced reactivity when tethered reactive groups are located deeper within the hydrophilic polymer layer. The phase diagram of charged nanoplatelets was constructed as a function of particle concentration, surface cation moiety, and ionic strength. Influence of surface cation on the isotropic-nematic transition was done by measuring the transition boundaries of discotic suspensions prepared by acid-base exfoliation reaction with a series of exfoliating agents. Furthermore, a novel phase transition was found, where platelet-platelet interaction was influenced synergistically by ionic strength and ion exchange. At low pH, directional inter-platelet attractions lead to the formation of low volume fraction colloidal gels. Alternative surface modification approaches, including biomolecule deposition and alkyl chain grafting were explored. Finally, self-assembly of platelets in emulsions and oil-water interface was examined. Surface modification was applied to link surface properties to stable emulsion-forming ability in mixed surfactant-particle system. Emulsion uniformity was achieved by microfluidic flow focusing method. Surface engineering and interaction control was demonstrated throughout this work to be viable approaches to the fundamental understanding of collective behaviors of individual building blocks. Advisors/Committee Members: Ugaz, Victor M. (advisor), Cheng, Zhengdong (advisor), Jayaraman, Arul (committee member), Cremer, Paul S. (committee member).

Subjects/Keywords: Colloids; Self-assembly; liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chang, Y. (2012). Discotic Liquid Crystals and Polymersomes: Molecule Goniometers. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chang, Ya-Wen. “Discotic Liquid Crystals and Polymersomes: Molecule Goniometers.” 2012. Thesis, Texas A&M University. Accessed February 24, 2020. http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chang, Ya-Wen. “Discotic Liquid Crystals and Polymersomes: Molecule Goniometers.” 2012. Web. 24 Feb 2020.

Vancouver:

Chang Y. Discotic Liquid Crystals and Polymersomes: Molecule Goniometers. [Internet] [Thesis]. Texas A&M University; 2012. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chang Y. Discotic Liquid Crystals and Polymersomes: Molecule Goniometers. [Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Mexico

9. Doyle, Derek. Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space.

Degree: Electrical and Computer Engineering, 2016, University of New Mexico

URL: http://hdl.handle.net/1928/31715

► The space industry has predominantly relied on high gain reflector dish antenna apertures for performing communications, but is constantly investing in phase array antenna concepts… (more)

▼ The space industry has predominantly relied on high gain reflector dish antenna apertures for performing communications, but is constantly investing in phase array antenna concepts to provide increased signal flexibility at reduced system costs in terms of finances and system resources. The problem with traditional phased arrays remains the significantly greater program cost and complexity added to the satellite by integrating arrays of antenna elements with dedicated amplifier and phase shifters to perform adaptive beam forming. Liquid Crystal Reflectarrays (LiCRas) offer some of the electrical beam forming capability of a phased array system with the component and design complexity in lines with a traditional reflector antenna aperture but without the risks associated with mechanical steering systems. The final solution is believed to be a hybrid approach that performs in between the boundaries set by the two current disparate approaches. Practical reflectarrays have been developed since the 90s as a means to control reflection of incident radiation off a flat structure that is electrically curved based on radiating elements and their reflection characteristics with tailored element phase delay. In the last decade several methods have been proposed to enable tunable reflectarrays where the electrical shape of the reflector can be steered by controlling the resonating properties of the elements on the reflector using a DC bias. These approaches range from complex fast switching MEMS and ferroelectric devices, to more robust but slower chemical changes. The aim of this work is to investigate the feasibility of a molecular transition approach in the form of liquid crystals which change permittivity based on the electrical field they are subjected to. In this work, particular attention will be paid to the impact of space environment on liquid crystal reflectarray materials and reflector architectures. Of particular interest are the effects on performance induced by the temperature extremes of space and the electromagnetic particle environment. These two items tend to drive much of the research and development for various space technologies and based on these physical influences, assertions can be made toward the space worthiness of such a material approach and can layout future R&D needs to make certain LC RF devices feasible for space use. Moreover, in this work the performance metrics of such a technology will be addressed along with methods of construction from a space perspective where specific design considerations must be made based on the extreme environment that a typical space asset must endure.' Advisors/Committee Members: Christodoulou, Christos, Gilmore, Mark, Khraishi, Tariq, Arritt, Brandon.

Subjects/Keywords: Liquid Crystals; Space; antenna

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Doyle, D. (2016). Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/31715

Chicago Manual of Style (16^th Edition):

Doyle, Derek. “Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space.” 2016. Doctoral Dissertation, University of New Mexico. Accessed February 24, 2020. http://hdl.handle.net/1928/31715.

MLA Handbook (7^th Edition):

Doyle, Derek. “Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space.” 2016. Web. 24 Feb 2020.

Vancouver:

Doyle D. Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space. [Internet] [Doctoral dissertation]. University of New Mexico; 2016. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/1928/31715.

Council of Science Editors:

Doyle D. Analysis, Implementation and Considerations for Liquid Crystals as a Reconfigurable Antennas Solution (LiCRAS) for Space. [Doctoral Dissertation]. University of New Mexico; 2016. Available from: http://hdl.handle.net/1928/31715

10. Woltman, Scott Jeffrey. Tunable liquid crystal lasers.

Degree: PhD, Physics, 2008, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:186/

► Liquid crystal lasers are dye-doped distributed feedback lasing systems. Fabricated by coupling the periodic structure of a liquid crystal medium with a fluorescent dye, the… (more)

▼ Liquid crystal lasers are dye-doped distributed feedback lasing systems. Fabricated by coupling the periodic structure of a liquid crystal medium with a fluorescent dye, the emission from these systems is tunable by controlling the liquid crystal system – be it through electric or thermal field effects, photochemical reactions, mechanical deformations, etc. The laser action arises from an extended interaction time between the radiation field, the laser emission, and the matter field, the periodic liquid crystal medium, at the edge of the photonic band gap. In this thesis, several tunable liquid crystal laser systems are investigated: cholesteric liquid crystals, holographic-polymer dispersed liquid crystals and liquid crystal polarization gratings. The primary focus has been to fabricate systems that are tunable through electrical means, as applications requiring mechanical or thermal changes are often difficult to control. Cholesteric liquid crystal lasers are helical Bragg reflectors, with a band gap for circularly polarized light of equivalent handedness to their helix. These materials were doped with a laser dye and laser emission was observed. The use of an in-plane electric field tends to unwind the helical pitch of the film and in doing so tunable emission was demonstrated for ~15 nm. Holographic-polymer dispersed liquid crystals (H-PDLCs) are grating structures consisting of alternating layers of polymer and liquid crystal, with different indices of refraction. The application of an electric field index matches these layers and `switches off' the grating. Thus, laser emission can be switched on and off through the use of an electric field. Spatially tunable H-PDLC lasers were fabricated by creating chirped gratings, formed by divergent beams. The emission was shown to tune ~5 nm as the pump beam was translated across a 1 inch film. Liquid crystal polarization gratings use photo-patterned alignment layers, through a polarization holography exposure, to induce an alignment in a liquid crystal film. Electrically tunable emission was demonstrated in these systems. Applications of liquid crystal lasers include emissive substrates or backplanes for displays or tunable emission sources for biology and medicine. The potential for such applications are discussed. Advisors/Committee Members: Crawford, Gregory (director), Pelcovits, Robert (reader), Valles, James (reader).

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Woltman, S. J. (2008). Tunable liquid crystal lasers. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:186/

Chicago Manual of Style (16^th Edition):

Woltman, Scott Jeffrey. “Tunable liquid crystal lasers.” 2008. Doctoral Dissertation, Brown University. Accessed February 24, 2020. https://repository.library.brown.edu/studio/item/bdr:186/.

MLA Handbook (7^th Edition):

Woltman, Scott Jeffrey. “Tunable liquid crystal lasers.” 2008. Web. 24 Feb 2020.

Vancouver:

Woltman SJ. Tunable liquid crystal lasers. [Internet] [Doctoral dissertation]. Brown University; 2008. [cited 2020 Feb 24]. Available from: https://repository.library.brown.edu/studio/item/bdr:186/.

Council of Science Editors:

Woltman SJ. Tunable liquid crystal lasers. [Doctoral Dissertation]. Brown University; 2008. Available from: https://repository.library.brown.edu/studio/item/bdr:186/

11. Jaiswal, Ashok Kumar. Studies on Liquid crystals; -.

Degree: Physics, 1980, Pt. Ravishankar Shukla University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/43732

None

Bibliography given

Advisors/Committee Members: Chandra, Suresh.

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jaiswal, A. K. (1980). Studies on Liquid crystals; -. (Thesis). Pt. Ravishankar Shukla University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/43732

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jaiswal, Ashok Kumar. “Studies on Liquid crystals; -.” 1980. Thesis, Pt. Ravishankar Shukla University. Accessed February 24, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/43732.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jaiswal, Ashok Kumar. “Studies on Liquid crystals; -.” 1980. Web. 24 Feb 2020.

Vancouver:

Jaiswal AK. Studies on Liquid crystals; -. [Internet] [Thesis]. Pt. Ravishankar Shukla University; 1980. [cited 2020 Feb 24]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/43732.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jaiswal AK. Studies on Liquid crystals; -. [Thesis]. Pt. Ravishankar Shukla University; 1980. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/43732

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Otago

12. Singh, Rinku. Self gelling microemulsion systems for vaccine delivery .

Degree: 2011, University of Otago

URL: http://hdl.handle.net/10523/1653

► Purpose: The increasing interest in new generation vaccines is based upon utilising highly purified proteins and peptides as antigens. However, a disadvantage of these subunit… (more)

▼ Purpose: The increasing interest in new generation vaccines is based upon utilising highly purified proteins and peptides as antigens. However, a disadvantage of these subunit vaccines is that they are often poorly immunogenic. Therefore there is a need to develop new formulation strategies which can generate the desired immune responses and are both safe and efficacious. One important formulation strategy involves incorporating antigens in polymeric nanoparticles, while another formulation strategy involves the dispersion of antigens in a sustained release carrier with the aim of increasing the size of the immune response generated and perhaps avoiding the need for multiple immunisations. In this thesis the aim was to combine these two approaches by dispersion of polymeric nanoparticles loaded with the antigen into a sustained release delivery systems (a self gelling microemulsion). Two polymeric nanoparticles (poly(ethylcyanoacrylate), PECA and chitosan nanoparticles, CNP) were dispersed in self gelling microemulsion (ME) templates. Ovalbumin (Ova) and Quil A were used as model antigen and adjuvant respectively. Biocompatible microemulsions were developed by establishing pseudoternary phase diagrams and these were then characterised at 37 ˚C. Lamellar liquid crystalline gel regions were found adjacent to the microemulsion regions in the phase diagrams. Upon addition of water or body fluids a phase transition from microemulsions to liquid crystalline systems may occur, which may make these systems suitable for sustained antigen delivery, as the rate of diffusion within the liquid crystalline phase is slower as compared to liquid vehicles. The study investigated the influence of the oil and water composition of the microemulsions on viscosity and release of antigen dispersed in the microemulsion in molecular form and incorporated into nanoparticles from the microemulsions and liquid crystalline gels. The ability of these formulations to generate immune responses towards Ova was also investigated in vivo. Methods: The ME components consisted of isopropyl myristate, lecithin, ethanol, water and either decyl glucoside (DG) or capryl-caprylyl glucoside (CCG). The selected microemulsions had a surfactant: water (S:W) ratio of 9:1 and a surfactant: oil (S:O) ratio of 5.2: 4.8. Formulations were loaded with fluorescently labelled Ova (FITC-Ova) and used as polymerisation templates for the preparation of PECA nanoparticles by interfacial polymerisation. CNP were prepared separately by a precipitation/coacervation method facilitated by sodium sulphate. The viscosity of one phase and two phase liquid crystalline gels (with and without nanoparticles incorporated) was determined using a cone and plate rheometer. A fluorometric assay was used to determine entrapment and in vitro release of FITC-Ova. An HPLC method was used to determine entrapment of Quil A in PECA nanoparticles and CNP. Self-gelling microemulsion templates containing Ova and Quil A either free or incorporated in nanoparticles were subsequently investigated in… Advisors/Committee Members: Rades, Thomas (advisor).

Subjects/Keywords: microemulsion; nanoparticles; liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Singh, R. (2011). Self gelling microemulsion systems for vaccine delivery . (Doctoral Dissertation). University of Otago. Retrieved from http://hdl.handle.net/10523/1653

Chicago Manual of Style (16^th Edition):

Singh, Rinku. “Self gelling microemulsion systems for vaccine delivery .” 2011. Doctoral Dissertation, University of Otago. Accessed February 24, 2020. http://hdl.handle.net/10523/1653.

MLA Handbook (7^th Edition):

Singh, Rinku. “Self gelling microemulsion systems for vaccine delivery .” 2011. Web. 24 Feb 2020.

Vancouver:

Singh R. Self gelling microemulsion systems for vaccine delivery . [Internet] [Doctoral dissertation]. University of Otago; 2011. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/10523/1653.

Council of Science Editors:

Singh R. Self gelling microemulsion systems for vaccine delivery . [Doctoral Dissertation]. University of Otago; 2011. Available from: http://hdl.handle.net/10523/1653

University of Southern California

13. Basson, Meir. Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals.

Degree: MS, Aerospace Engineering, 2010, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/330842/rec/3995

► Thermochromic liquid crystals (TLC’s) have a unique chemical composition that makes them reflect different wavelengths of the visible light spectrum at different temperatures, causing them… (more)

Subjects/Keywords: microfluidic; thermochromic liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Basson, M. (2010). Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals. (Masters Thesis). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/330842/rec/3995

Chicago Manual of Style (16^th Edition):

Basson, Meir. “Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals.” 2010. Masters Thesis, University of Southern California. Accessed February 24, 2020. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/330842/rec/3995.

MLA Handbook (7^th Edition):

Basson, Meir. “Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals.” 2010. Web. 24 Feb 2020.

Vancouver:

Basson M. Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals. [Internet] [Masters thesis]. University of Southern California; 2010. [cited 2020 Feb 24]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/330842/rec/3995.

Council of Science Editors:

Basson M. Measuring the temperature of stationary fluid in a microchannel using thermochromic liquid crystals. [Masters Thesis]. University of Southern California; 2010. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/330842/rec/3995

Montana State University

14. Huang, Wei. Structure and shape of nematic liquid crystal microdroplets.

Degree: College of Letters & Science, 1993, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/6736

Subjects/Keywords: Liquid crystals.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Huang, W. (1993). Structure and shape of nematic liquid crystal microdroplets. (Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/6736

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Huang, Wei. “Structure and shape of nematic liquid crystal microdroplets.” 1993. Thesis, Montana State University. Accessed February 24, 2020. https://scholarworks.montana.edu/xmlui/handle/1/6736.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Huang, Wei. “Structure and shape of nematic liquid crystal microdroplets.” 1993. Web. 24 Feb 2020.

Vancouver:

Huang W. Structure and shape of nematic liquid crystal microdroplets. [Internet] [Thesis]. Montana State University; 1993. [cited 2020 Feb 24]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6736.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Huang W. Structure and shape of nematic liquid crystal microdroplets. [Thesis]. Montana State University; 1993. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6736

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Montana State University

15. Himmer, Phillip Alexander. Freedericksz transitions in nematic liquid crystal.

Degree: College of Letters & Science, 1992, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/7104

Subjects/Keywords: Liquid crystals.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Himmer, P. A. (1992). Freedericksz transitions in nematic liquid crystal. (Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/7104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Himmer, Phillip Alexander. “Freedericksz transitions in nematic liquid crystal.” 1992. Thesis, Montana State University. Accessed February 24, 2020. https://scholarworks.montana.edu/xmlui/handle/1/7104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Himmer, Phillip Alexander. “Freedericksz transitions in nematic liquid crystal.” 1992. Web. 24 Feb 2020.

Vancouver:

Himmer PA. Freedericksz transitions in nematic liquid crystal. [Internet] [Thesis]. Montana State University; 1992. [cited 2020 Feb 24]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/7104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Himmer PA. Freedericksz transitions in nematic liquid crystal. [Thesis]. Montana State University; 1992. Available from: https://scholarworks.montana.edu/xmlui/handle/1/7104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

16. Siemianowski, Simon Dominik. Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations.

Degree: 2010, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:95781

► The initial aim of the work presented in this thesis was to examine smecticlayer compressibility with a view to improving our understanding of the stability… (more)

Subjects/Keywords: Liquid Crystals; x-ray diffraction

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Siemianowski, S. D. (2010). Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:95781

Chicago Manual of Style (16^th Edition):

Siemianowski, Simon Dominik. “Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations.” 2010. Doctoral Dissertation, University of Manchester. Accessed February 24, 2020. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:95781.

MLA Handbook (7^th Edition):

Siemianowski, Simon Dominik. “Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations.” 2010. Web. 24 Feb 2020.

Vancouver:

Siemianowski SD. Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations. [Internet] [Doctoral dissertation]. University of Manchester; 2010. [cited 2020 Feb 24]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:95781.

Council of Science Editors:

Siemianowski SD. Approaches to Studying Smectic Layer Elasticity and Field Induced Deformations. [Doctoral Dissertation]. University of Manchester; 2010. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:95781

University of British Columbia

17. MacKay, Alexander Lloyd. An EPR study of order and molecular orientation in liquid crystals .

Degree: 1971, University of British Columbia

URL: http://hdl.handle.net/2429/34162

► Using EPR, the temperature dependence of the effective order parameter of the molecule vanadyl acetylacetonate in the nematic liquid crystal 4-methoxy benzylidene-n-butyl aniline was studied.… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

MacKay, A. L. (1971). An EPR study of order and molecular orientation in liquid crystals . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/34162

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

MacKay, Alexander Lloyd. “An EPR study of order and molecular orientation in liquid crystals .” 1971. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/34162.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

MacKay, Alexander Lloyd. “An EPR study of order and molecular orientation in liquid crystals .” 1971. Web. 24 Feb 2020.

Vancouver:

MacKay AL. An EPR study of order and molecular orientation in liquid crystals . [Internet] [Thesis]. University of British Columbia; 1971. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/34162.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

MacKay AL. An EPR study of order and molecular orientation in liquid crystals . [Thesis]. University of British Columbia; 1971. Available from: http://hdl.handle.net/2429/34162

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

18. Morris, Stephen William. Measurements of the elastic constants of a liquid crystal .

Degree: 1985, University of British Columbia

URL: http://hdl.handle.net/2429/24869

► The bend and splay elastic constants of the nematic liquid crystal octylcyanobiphenyl (8CB) are measured as a function of temperature using an electric-field-induced deformation. The… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Morris, S. W. (1985). Measurements of the elastic constants of a liquid crystal . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/24869

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Morris, Stephen William. “Measurements of the elastic constants of a liquid crystal .” 1985. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/24869.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Morris, Stephen William. “Measurements of the elastic constants of a liquid crystal .” 1985. Web. 24 Feb 2020.

Vancouver:

Morris SW. Measurements of the elastic constants of a liquid crystal . [Internet] [Thesis]. University of British Columbia; 1985. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/24869.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Morris SW. Measurements of the elastic constants of a liquid crystal . [Thesis]. University of British Columbia; 1985. Available from: http://hdl.handle.net/2429/24869

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

19. Gleeson, James Theodore. Surface anchoring of nematic liquid crystals .

Degree: 1988, University of British Columbia

URL: http://hdl.handle.net/2429/27928

► The surface anchoring of the nematic liquid crystal 5CB aligned tangentially on two different glass substrate treatments is studied. These two treatments are obliquely evaporated… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gleeson, J. T. (1988). Surface anchoring of nematic liquid crystals . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/27928

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gleeson, James Theodore. “Surface anchoring of nematic liquid crystals .” 1988. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/27928.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gleeson, James Theodore. “Surface anchoring of nematic liquid crystals .” 1988. Web. 24 Feb 2020.

Vancouver:

Gleeson JT. Surface anchoring of nematic liquid crystals . [Internet] [Thesis]. University of British Columbia; 1988. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/27928.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gleeson JT. Surface anchoring of nematic liquid crystals . [Thesis]. University of British Columbia; 1988. Available from: http://hdl.handle.net/2429/27928

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

20. Wang, Xin. 1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder .

Degree: 1987, University of British Columbia

URL: http://hdl.handle.net/2429/28353

► New liquid crystals have been synthesized and their transition phases have been studied. It was found that a family of (-)-2-methyl 2R,3S-epithio-4'-alkoxybiphenyl pentanoates are liquid… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, X. (1987). 1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/28353

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Xin. “1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder .” 1987. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/28353.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Xin. “1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder .” 1987. Web. 24 Feb 2020.

Vancouver:

Wang X. 1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder . [Internet] [Thesis]. University of British Columbia; 1987. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/28353.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang X. 1. Design and synthesis of new chiral units for potentially ferroelectric liquid crystals : liquid crystals containing a thiiran unit. 2. Heterogeneous catalysis of the racemization of 1,1'-binaphthyl by titanium dioxide powder . [Thesis]. University of British Columbia; 1987. Available from: http://hdl.handle.net/2429/28353

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

21. Palffy-Muhoray, Peter. Refractive indices of liquid crystals and pure fluids near phase transitions .

Degree: 1977, University of British Columbia

URL: http://hdl.handle.net/2429/20911

► Interferometric measurements to determine the refractive indices of the nematic liquid crystals EBBA and BEPC as a function of temperature are described utilizing modified Rayleigh… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Palffy-Muhoray, P. (1977). Refractive indices of liquid crystals and pure fluids near phase transitions . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/20911

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Palffy-Muhoray, Peter. “Refractive indices of liquid crystals and pure fluids near phase transitions .” 1977. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/20911.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Palffy-Muhoray, Peter. “Refractive indices of liquid crystals and pure fluids near phase transitions .” 1977. Web. 24 Feb 2020.

Vancouver:

Palffy-Muhoray P. Refractive indices of liquid crystals and pure fluids near phase transitions . [Internet] [Thesis]. University of British Columbia; 1977. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/20911.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Palffy-Muhoray P. Refractive indices of liquid crystals and pure fluids near phase transitions . [Thesis]. University of British Columbia; 1977. Available from: http://hdl.handle.net/2429/20911

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Aberdeen

22. Walker, Rebecca. Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase.

Degree: PhD, 2019, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240697 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767357

► The principal aim of this Thesis is the synthesis and characterisation of a range of novel liquid crystals designed to exhibit the twist-bend nematic phase… (more)

▼ The principal aim of this Thesis is the synthesis and characterisation of a range of novel liquid crystals designed to exhibit the twist-bend nematic phase (NTB), in order to enhance our understanding of the relationships between molecular structure and the observation of NTB behaviour. Moreover, the inclusion of chiral fragments allowed the effects of molecular chirality on the structure of the NTB phase, specifically the chiral twist-bend nematic phase, N*TB, to be studied. In Chapter 3, a series of non-symmetric odd-membered liquid crystal dimers are prepared and the terminal chain length m is varied. A change in the local molecular structure from intercalated to bilayer is seen on increasing m, but this has no apparent effect on the stability of both the nematic and twist-bend nematic phases, which show a regular dependence on m. A novel twist-bend smectic phase is reported. Chapter 4 investigates the effects of branching this terminal chain on phase behaviour. It is evident that in dimers with a shorter spacer, branching destabilises the N and NTB phases while stabilising smectic behaviour, but in longer homologues smectic behaviour is also destabilised. Chapter 5 explores the effect of molecular bulk on phase behaviour, specifically the stability of the NTB phase, by the incorporation of a pyrene moiety. This group supresses crystallisation such that stable, low temperature NTB phases are formed despite the bulky group. Chapters 6 and 7 study the inclusion of chiral moieties in bent-shaped, odd-membered dimers: specifically, 2-methylbutyl, 1-methylheptyl (6) and lactic esters (7). New examples of the rarely observed chiral twist-bend nematic phase are seen. Phase behaviour is investigated and compared to achiral and racemic analogues. Chapter 8 describes the mesogenic behaviour of molecular complexes assembled by hydrogen bonding between both achiral and chiral stilbazole-based and benzoic acid-based fragments. A selection of the complexes exhibit the N(*)TB phase despite only one or neither component being mesogenic.

Subjects/Keywords: Liquid crystals; Chirality; Dimers

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Walker, R. (2019). Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240697 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767357

Chicago Manual of Style (16^th Edition):

Walker, Rebecca. “Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase.” 2019. Doctoral Dissertation, University of Aberdeen. Accessed February 24, 2020. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240697 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767357.

MLA Handbook (7^th Edition):

Walker, Rebecca. “Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase.” 2019. Web. 24 Feb 2020.

Vancouver:

Walker R. Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase. [Internet] [Doctoral dissertation]. University of Aberdeen; 2019. [cited 2020 Feb 24]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240697 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767357.

Council of Science Editors:

Walker R. Synthesis and characterisation of novel liquid crystalline materials : structure-property relationships, chirality, and the twist-bend nematic phase. [Doctoral Dissertation]. University of Aberdeen; 2019. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240697 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767357

Oregon State University

23. Kelley, Thomas E. Microcontinuum theory and orientational effects in smectic liquid crystals.

Degree: PhD, Mathematics, 1977, Oregon State University

URL: http://hdl.handle.net/1957/17576

► Micropolar Theory, a specialization of the Microcontinuum Theory advanced by A. C. Eringen in the early 1960ts has been used successfully in predicting the behavior… (more)

▼ Micropolar Theory, a specialization of the Microcontinuum Theory advanced by A. C. Eringen in the early 1960ts has been used successfully in predicting the behavior of materials whose inner structure is composed of rod-like elements. Liquid crystals fall into this class of materials and their wide-spread use in Industry and in medical diagnostic devices requires a detailed analysis of their response to various external stimuli. To this end we have undertaken a detailed study of smectic liquid crystals using the micropolar theory. The first step was to develop a mathematical foundation for irreversible and nonlinear thermodynamics of liquid crystals and mathematical methods for obtaining thermodynamical restrictions on the material response coefficients of smectic liquid crystals. Full symmetry properties of liquid crystals have been employed in order to simplify the constitutive equations. This theory has then been applied to the physical problem of predicting orientational effects in smectic liquid crystals due to boundary influences, superposed shear flows, and thermal gradients. Since most experiments are carried out for viscometric flows we have considered the flow of smectic liquid crystals between two rotating coaxial cylinders. The velocity field obtained is found to include the classical Couette flow as a special case. We then compare our results with experiments and identify the material coefficients of the theory with physically measurable quantities such as apparent viscosity. The shear-rate dependence of viscosity at various temperatures of the srnectic range is determined and comparisons with experimental results yield good agreement. Finally, with the aim of constructing a viscoelastic theory suitable for description of materials with stretchable rod-like elements we first develop the theory of micropolar elasticity with stretch which takes into account the uniform stretching of the material's microelements. Future work involving the construction of the theory of micropolar viscoelasticity with stretch and its application to the study of viscoelastic waves is indicated. Advisors/Committee Members: Narasimhan, M. N. L. (advisor).

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kelley, T. E. (1977). Microcontinuum theory and orientational effects in smectic liquid crystals. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/17576

Chicago Manual of Style (16^th Edition):

Kelley, Thomas E. “Microcontinuum theory and orientational effects in smectic liquid crystals.” 1977. Doctoral Dissertation, Oregon State University. Accessed February 24, 2020. http://hdl.handle.net/1957/17576.

MLA Handbook (7^th Edition):

Kelley, Thomas E. “Microcontinuum theory and orientational effects in smectic liquid crystals.” 1977. Web. 24 Feb 2020.

Vancouver:

Kelley TE. Microcontinuum theory and orientational effects in smectic liquid crystals. [Internet] [Doctoral dissertation]. Oregon State University; 1977. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/1957/17576.

Council of Science Editors:

Kelley TE. Microcontinuum theory and orientational effects in smectic liquid crystals. [Doctoral Dissertation]. Oregon State University; 1977. Available from: http://hdl.handle.net/1957/17576

University of Minnesota

24. Hiltner, Lindsey. Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology.

Degree: PhD, Mathematics, 2018, University of Minnesota

URL: http://hdl.handle.net/11299/202192

► Using the mathematical theory of liquid crystals, we propose models for equilibrium configurations of the hexagonal columnar phase of lyotropic chromonic liquid crystals (LCLCs). These… (more)

Subjects/Keywords: Bacteriophage; Chromonic; Liquid Crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hiltner, L. (2018). Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/202192

Chicago Manual of Style (16^th Edition):

Hiltner, Lindsey. “Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology.” 2018. Doctoral Dissertation, University of Minnesota. Accessed February 24, 2020. http://hdl.handle.net/11299/202192.

MLA Handbook (7^th Edition):

Hiltner, Lindsey. “Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology.” 2018. Web. 24 Feb 2020.

Vancouver:

Hiltner L. Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology. [Internet] [Doctoral dissertation]. University of Minnesota; 2018. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/11299/202192.

Council of Science Editors:

Hiltner L. Equilibrium Configurations of Hexagonal Columnar Liquid Crystals with Applications to Materials Science and Biology. [Doctoral Dissertation]. University of Minnesota; 2018. Available from: http://hdl.handle.net/11299/202192

University of British Columbia

25. Gingras, Michel. Nonseparable interactions and orientational phenomena in liquid crystals .

Degree: 1990, University of British Columbia

URL: http://hdl.handle.net/2429/30582

► Intermolecular interactions are anisotropic since they depend on the orientations of the interacting molecules. They are responsible for the orientational phase transitions observed in molecular… (more)

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gingras, M. (1990). Nonseparable interactions and orientational phenomena in liquid crystals . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/30582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gingras, Michel. “Nonseparable interactions and orientational phenomena in liquid crystals .” 1990. Thesis, University of British Columbia. Accessed February 24, 2020. http://hdl.handle.net/2429/30582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gingras, Michel. “Nonseparable interactions and orientational phenomena in liquid crystals .” 1990. Web. 24 Feb 2020.

Vancouver:

Gingras M. Nonseparable interactions and orientational phenomena in liquid crystals . [Internet] [Thesis]. University of British Columbia; 1990. [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2429/30582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gingras M. Nonseparable interactions and orientational phenomena in liquid crystals . [Thesis]. University of British Columbia; 1990. Available from: http://hdl.handle.net/2429/30582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

26. Zhang, Baoshe. A study of substrate – liquid crystal interaction.

Degree: 2003, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-610 ; https://doi.org/10.14711/thesis-b785672 ; http://repository.ust.hk/ir/bitstream/1783.1-610/1/th_redirect.html

► This thesis concerns the study of substrate-liquid crystal interaction from two different angles. In one approach, we used the IPS (in-plane switching) technique to investigate… (more)

▼ This thesis concerns the study of substrate-liquid crystal interaction from two different angles. In one approach, we used the IPS (in-plane switching) technique to investigate the liquid crystal alignment by rubbed polyimide films. The IPS mode of liquid crystal cell operation is facilitated through comb electrodes capable of producing planar electric field. We have fabricated comb electrodes with a periodicity of 2 μm in order to confine the planar electric field close to the liquid crystal-substrate interface. Through optical transmittance measurements and comparison with theoretical predictions based on the Ladau-de Gennes formalism, we found the experimental data to be consistent with the physical picture of soft anchoring, in which the liquid crystal director at the substrate interface is rotated azimuthally under the planar electric field. As a result, we were able to obtain the azimuthal anchoring strength as a fitting parameter of the theory. This part of the thesis thus presents evidence(s) for director switching at the liquid crystal-substrate interface, as well as a method for measuring the azimuthal anchoring strength through optical means. In the second approach, we used nano-lithographic technique to fabricate textured two dimensional periodic patterns on silicon wafers, and examined the resulting liquid crystal alignment effect of such textured substrates. It was found that with decreasing periodicity, there exists an orientational transition from a state in which the liquid crystal alignment copies the substrate pattern at larger periodicity, to a state of uniform alignment at smaller periodicity. In our system, this transition occurs at a periodicity between 0.4 μm and 0.8 μm . Through theoretical simulations based on the model of competition between the elastic distortion energy and the interfacial anchoring potential, it was found that there is indeed a first-order abrupt transition when the periodicity is decreased. This is due to the fact that the elastic distortion energy scales as the inverse of the periodicity squared. Hence when the periodicity is decreased, the elastic distortion energy increases rapidly. At the critical periodicity the elastic distortion energy crosses the interfacial anchoring potential, below which the uniform alignment becomes the lower energy state. The uniform-aligned state was confirmed by the excellent theory-experiment agreement on spectral measurements, in conjuction with the optical microscope observations. In the uniform-aligned state, a large pretilt angle (35°) was obtained.

Subjects/Keywords: Liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, B. (2003). A study of substrate – liquid crystal interaction. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-610 ; https://doi.org/10.14711/thesis-b785672 ; http://repository.ust.hk/ir/bitstream/1783.1-610/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Baoshe. “A study of substrate – liquid crystal interaction.” 2003. Thesis, Hong Kong University of Science and Technology. Accessed February 24, 2020. http://repository.ust.hk/ir/Record/1783.1-610 ; https://doi.org/10.14711/thesis-b785672 ; http://repository.ust.hk/ir/bitstream/1783.1-610/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Baoshe. “A study of substrate – liquid crystal interaction.” 2003. Web. 24 Feb 2020.

Vancouver:

Zhang B. A study of substrate – liquid crystal interaction. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2003. [cited 2020 Feb 24]. Available from: http://repository.ust.hk/ir/Record/1783.1-610 ; https://doi.org/10.14711/thesis-b785672 ; http://repository.ust.hk/ir/bitstream/1783.1-610/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang B. A study of substrate – liquid crystal interaction. [Thesis]. Hong Kong University of Science and Technology; 2003. Available from: http://repository.ust.hk/ir/Record/1783.1-610 ; https://doi.org/10.14711/thesis-b785672 ; http://repository.ust.hk/ir/bitstream/1783.1-610/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Simon Fraser University

27. Tamblyn, Nancy A. Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point.

Degree: 1994, Simon Fraser University

URL: http://summit.sfu.ca/item/5125

Subjects/Keywords: Liquid crystals.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tamblyn, N. A. (1994). Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point. (Thesis). Simon Fraser University. Retrieved from http://summit.sfu.ca/item/5125

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tamblyn, Nancy A. “Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point.” 1994. Thesis, Simon Fraser University. Accessed February 24, 2020. http://summit.sfu.ca/item/5125.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tamblyn, Nancy A. “Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point.” 1994. Web. 24 Feb 2020.

Vancouver:

Tamblyn NA. Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point. [Internet] [Thesis]. Simon Fraser University; 1994. [cited 2020 Feb 24]. Available from: http://summit.sfu.ca/item/5125.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tamblyn NA. Is the nematic-smectic A transition always first order? : measurements of surface tension near an apparent tricritical point. [Thesis]. Simon Fraser University; 1994. Available from: http://summit.sfu.ca/item/5125

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Debrecen

28. Abdollahzadeh, Aysen. Pharmaceutical Description Of Liquid Crystals .

Degree: DE – Gyógyszerésztudományi Kar, University of Debrecen

URL: http://hdl.handle.net/2437/240866

► nowadays much interest has been focused on lipid based formulations,with particular emphasis on semi solid liquid crystals as a possible drug delivery system to improve… (more)

Subjects/Keywords: liquid crystals

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Abdollahzadeh, A. (n.d.). Pharmaceutical Description Of Liquid Crystals . (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/240866

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Abdollahzadeh, Aysen. “Pharmaceutical Description Of Liquid Crystals .” Thesis, University of Debrecen. Accessed February 24, 2020. http://hdl.handle.net/2437/240866.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Abdollahzadeh, Aysen. “Pharmaceutical Description Of Liquid Crystals .” Web. 24 Feb 2020.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Abdollahzadeh A. Pharmaceutical Description Of Liquid Crystals . [Internet] [Thesis]. University of Debrecen; [cited 2020 Feb 24]. Available from: http://hdl.handle.net/2437/240866.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Abdollahzadeh A. Pharmaceutical Description Of Liquid Crystals . [Thesis]. University of Debrecen; Available from: http://hdl.handle.net/2437/240866

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Hong Kong University of Science and Technology

29. Tseng, Man Chun ECE. Novel alignment surfaces for liquid crystal display.

Degree: 2016, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-89664 ; https://doi.org/10.14711/thesis-b1584831 ; http://repository.ust.hk/ir/bitstream/1783.1-89664/1/th_redirect.html

► Thought brushed polyimide is commercially widely used in LCD production there are many problems associated with mechanical rubbing; dust acting as nucleation seeds is one.… (more)

▼ Thought brushed polyimide is commercially widely used in LCD production there are many problems associated with mechanical rubbing; dust acting as nucleation seeds is one. By controlling nucleation, it becomes an advantage for bistable nematic liquid crystal displays. Fast responding, bistable twisted nematic displays (TN-LCDs) with high contrast and low driving voltage based on PI-alignment layers enabling controlled nucleation are reported. Controlled nucleation is powerful because of its simple structure and its compatibility with current LCD fabrication technologies. It has a high potential to be adapted to bistable, high resolution E-book or E-paper. Photoalignment is an advanced LC alignment technology that has been acknowledged as replacement for the conventional method of rubbed PI. Photoalignment requires no physical contact with the alignment film during processing. It avoids mechanical rubbing defect lines and static charging problems created by rubbing. The Azo-dye material azobenzene sulfuric sye SD1 developed at CDR is one of the promising photo-alignment materials, providing the highest azimuth anchoring energy. However, the re-writing behavior of SD1 which is inherent to Azo needs to be stabilized for most LCD applications. In this proposal, two we propose two methods for stabilizing SD1 alignment. The first is a stacking alignment method. The alignment film configuration consists of a stack of a thin photo-polymerisable liquid crystal pre-polymer film on top of an azo dye photo-alignment layer. The liquid crystal polymer acts as a passivation layer for the azo dye photoalignment layer. It prevents the alignment direction of the azo dye to be rewritten after the liquid crystal polymer is polymerized. The resulting liquid crystal polymer (LCP) alignment surface is robust and exhibits excellent stability. In addition, measurements show that the alignment properties of our stacked alignment surfaces are comparable to conventional polyimide alignment films. The proposed alignment layer is therefore suitable for in plane switching (IPS) liquid crystal displays which require high anchoring energy and very small residual direct current. Moreover, another new stabilization method for SD1 alignment films is proposed in this work. The key feature of the new aligning material is a mixing a liquid crystal pre-polymer with SD1. Films made with the novel alignment material exhibit as good alignment as those of pure azo-dye materials. Since no additional top layer is needed in this case and no additional synthesis effort is required, this method presents an easy way for fabricating stable LC-alignment films. Photo-stability against exposure to white and blue light is much improved compared with a pure SD1 layer.

Subjects/Keywords: Liquid crystal displays ; Liquid crystals ; Structure

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tseng, M. C. E. (2016). Novel alignment surfaces for liquid crystal display. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-89664 ; https://doi.org/10.14711/thesis-b1584831 ; http://repository.ust.hk/ir/bitstream/1783.1-89664/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tseng, Man Chun ECE. “Novel alignment surfaces for liquid crystal display.” 2016. Thesis, Hong Kong University of Science and Technology. Accessed February 24, 2020. http://repository.ust.hk/ir/Record/1783.1-89664 ; https://doi.org/10.14711/thesis-b1584831 ; http://repository.ust.hk/ir/bitstream/1783.1-89664/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tseng, Man Chun ECE. “Novel alignment surfaces for liquid crystal display.” 2016. Web. 24 Feb 2020.

Vancouver:

Tseng MCE. Novel alignment surfaces for liquid crystal display. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2016. [cited 2020 Feb 24]. Available from: http://repository.ust.hk/ir/Record/1783.1-89664 ; https://doi.org/10.14711/thesis-b1584831 ; http://repository.ust.hk/ir/bitstream/1783.1-89664/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tseng MCE. Novel alignment surfaces for liquid crystal display. [Thesis]. Hong Kong University of Science and Technology; 2016. Available from: http://repository.ust.hk/ir/Record/1783.1-89664 ; https://doi.org/10.14711/thesis-b1584831 ; http://repository.ust.hk/ir/bitstream/1783.1-89664/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kent State University

30. Bailey, Christopher Allen. Structure and Rheology of Some Bent Core Liquid Crystals.

Degree: PhD, College of Arts and Sciences / Department of Chemical Physics, 2008, Kent State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=kent1216229977

► Liquid crystal phases composed of bent core molecules have been a fascinating topic in soft matter physics over the last decade. These materials which can… (more)

Subjects/Keywords: Physics; liquid crystals; bent core liquid crystals; filaments; rheology; nanoliter viscometer

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bailey, C. A. (2008). Structure and Rheology of Some Bent Core Liquid Crystals. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1216229977

Chicago Manual of Style (16^th Edition):

Bailey, Christopher Allen. “Structure and Rheology of Some Bent Core Liquid Crystals.” 2008. Doctoral Dissertation, Kent State University. Accessed February 24, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=kent1216229977.

MLA Handbook (7^th Edition):

Bailey, Christopher Allen. “Structure and Rheology of Some Bent Core Liquid Crystals.” 2008. Web. 24 Feb 2020.

Vancouver:

Bailey CA. Structure and Rheology of Some Bent Core Liquid Crystals. [Internet] [Doctoral dissertation]. Kent State University; 2008. [cited 2020 Feb 24]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1216229977.

Council of Science Editors:

Bailey CA. Structure and Rheology of Some Bent Core Liquid Crystals. [Doctoral Dissertation]. Kent State University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1216229977

Open Access Theses and Dissertations