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1. Hernandez Maldonado, Daniel. Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices.

Degree: Docteur es, Chimie moléculaire, 2015, Université Toulouse III – Paul Sabatier

Les propriétés des matériaux organiques pour l'optoélectronique à base de polymères ou de petites molécules sont fortement influencées par l'organisation moléculaire. En particulier, l'efficacité de la photoconversion dans les dispositifs à base de films minces organiques peut être corrélée directement à la morphologie de leurs mélanges actifs. Par conséquent, une meilleure compréhension de l'évolution de la morphologie des films minces pendant les divers traitements effectués lors de leur élaboration est essentielle et nécessaire. D'autre part, l'ingénierie moléculaire est un outil crucial pour l'obtention de molécules basées sur des alternances de fragments accepteurs d'électrons ou donneurs d'électrons et présentant des valeurs de gap électronique optimales et conduisant à des dispositifs aux paramètres de photoconversion optimisés.Dans le présent travail, nous présentons une étude approfondie en solution et sur des films minces de poly-3-hexylthiophène (P3HT) pur et en mélange avec des complexes de nickel (Ni-bdt). Le but était de comprendre comment le P3HT interagit avec les complexes de nickel pour contrôler des phénomènes d'organisation éventuels. L'objectif principal de cette étude est de comprendre l'organisation moléculaires au sein des films organiques et son impact sur le transfert de charge entre les matériaux afin d'optimiser les rendements de photoconversion. En outre, nous avons conçu et synthétisé trois nouvelles molécules à faible gap électronique, nommées SilOCAO, Bz(T1CAO)2 et Bz(T1CAEH)2 selon des méthodologies de synthèse optimisées. Ces molécules ont été conçues avec l'appui de calculs semi-empiriques effectués avec le programme Gaussian 09 au niveau B3LYP/6-31G* dans le but de les associer éventuellement aux complexes de nickel. Leurs synthèses et caractérisations complètes sont décrites en détail. Les techniques analytiques utilisées sont la spectroscopie d'absorption UV-visible, la photoluminescence, la résonance magnétique nucléaire (RMN), la spectroscopie de masse, l'électrochimie, l'analyse thermogravimétrique (TGA) et la calorimétrie différentielle à balayage (DSC). Ces molécules présentant des propriétés intéressantes pour leur utilisation en photovoltaïque organique, nous avons réalisé des cellules solaires organiques prototypes. Les résultats obtenus sont prometteurs, en particulier dans le cas de la molécule SilOCAO, utilisée ici comme donneur d'électrons en association avec le PC71BM. Ce travail est le fruit d'une collaboration précieuse entre plusieurs chercheurs, des théoriciens et expérimentateurs, des laboratoires LAAS et LAPLACE à Toulouse (France), de l'Université Autonome Nationale de Mexico (UNAM) et du Centre de Recherche en Optique (CIO) de Leon (Mexique).

Optoeletronic properties of semiconducting polymeric/small molecules materials are highly influenced by molecules organization. In particular, photoconversion efficiency of organic devices may be correlated directly with their blend morphology. Therefore, a better understanding of the blend film morphology evolution…

Advisors/Committee Members: Moineau-Chane Ching, Kathleen (thesis director).

Subjects/Keywords: Organisation moléculaire; Morphologie des mélanges; Molécules à faible gap électronique; P3HT; Complexes de nickel; Transfert de charge; SilOCAO; Bz(T1CAO)2; Bz(T1CAEH)2; Heterojonction en volume; Photovoltaïque organique; Keywords molecules organization; Blend morphology; Molecular engineering; Low band gap materials; P3HT; Ni-bdt; Charge transfer; Organic solar cells

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APA (6th Edition):

Hernandez Maldonado, D. (2015). Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices. (Doctoral Dissertation). Université Toulouse III – Paul Sabatier. Retrieved from http://www.theses.fr/2015TOU30103

Chicago Manual of Style (16th Edition):

Hernandez Maldonado, Daniel. “Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices.” 2015. Doctoral Dissertation, Université Toulouse III – Paul Sabatier. Accessed July 10, 2020. http://www.theses.fr/2015TOU30103.

MLA Handbook (7th Edition):

Hernandez Maldonado, Daniel. “Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices.” 2015. Web. 10 Jul 2020.

Vancouver:

Hernandez Maldonado D. Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices. [Internet] [Doctoral dissertation]. Université Toulouse III – Paul Sabatier; 2015. [cited 2020 Jul 10]. Available from: http://www.theses.fr/2015TOU30103.

Council of Science Editors:

Hernandez Maldonado D. Photovoltaïque organique : étude de la morphologie de films minces, conception, synthèse et étude de petites molécules pour leur utilisation en hétérojonction en volume dans des dispositifs photovoltaïques : Organic photovoltaics : study of thin films morphology, design, synthesis, synthesis of new small molecules and their study in bulk heterojunction devices. [Doctoral Dissertation]. Université Toulouse III – Paul Sabatier; 2015. Available from: http://www.theses.fr/2015TOU30103

2. Drueck, Fred R. Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes.

Degree: 2013, University of Illinois – Chicago

This dissertation examines three main topics, the topic of defining "superstability" for abstract elementary classes (AECs), uniqueness of limit models, and two cardinal models in abstract elementary classes. In particular we further generalize an analogue of Vaught's theorem which constructs an uncountable two cardinal model starting from the existence of a countable Vaughtian pair in an elementary class to the AEC context originally published by Lessmann, who in turn built upon the work of Grossberg and VanDieren, Shelah, and others. We also give various sufficient conditions on countable models, as well as a condition on models of size kappa that, assuming that a simplified morass,ñ allows us to construct a (kappa^++,kappa)-model. We discuss how this work in AECs to some degree parallels the proof of Jensen's Gap-2 transfer theorem for elementary classes. We also discuss difficulties inherent in proving a true gap-2 transfer theorem for AECs. Additionally, we discuss, progress that has been made toward proving the uniqueness of limit models assuming various "superstability-like" assumptions (much of the work described is due to Shelah, Villaveces, Grossberg, and VanDieren). One small original result is contributed to this discussion. Advisors/Committee Members: Baldwin, John T. (advisor), Marker, David (committee member), Takloo-Bighash, Ramin (committee member), VanDieren, Monica (committee member), Scow, Lynn (committee member).

Subjects/Keywords: Limit Models; Superlimit Models; Two Cardinal Problems; two cardinal models; two cardinal; 2 cardinal; 2 cardinal problems; 2 cardinal model; gap-2 transfer; gap-2; Abstract Elementary Classes; mathematical logic; uniqueness of limit models; morasses; lessmann

…proving the classical gap-2 transfer result for first order logic in (Devlin, 1984)… …discuss some progress we have made in trying to prove an analogue of Jensen’s Gap-2 Transfer… …gap-transfer theorems for AECs. In Chapter 3 we examine Lessmann’s analogue of Vaught’s… …results using Shelah’s presentation theorem. The classical gap-two transfer theorem of Jensen… …SUMMARY In the introduction and Chapter 2 we introduce various conditions which could… 

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APA (6th Edition):

Drueck, F. R. (2013). Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/9996

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

Chicago Manual of Style (16th Edition):

Drueck, Fred R. “Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes.” 2013. Thesis, University of Illinois – Chicago. Accessed July 10, 2020. http://hdl.handle.net/10027/9996.

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

MLA Handbook (7th Edition):

Drueck, Fred R. “Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes.” 2013. Web. 10 Jul 2020.

Vancouver:

Drueck FR. Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes. [Internet] [Thesis]. University of Illinois – Chicago; 2013. [cited 2020 Jul 10]. Available from: http://hdl.handle.net/10027/9996.

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

Council of Science Editors:

Drueck FR. Limit Models, Superlimit Models, and Two Cardinal Problems in Abstract Elementary Classes. [Thesis]. University of Illinois – Chicago; 2013. Available from: http://hdl.handle.net/10027/9996

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


University of Oxford

3. O'Dowd, Devin Owen. Aero-thermal performance of transonic high-pressure turbine blade tips.

Degree: PhD, 2010, University of Oxford

This thesis presents an experimental and theoretical study of unshrouded tips on gas turbine blades with and without winglets. The goal of the winglet tip design is to reduce over-tip leakage flow. To assess the potential use of winglets, their effectiveness in reducing loss and the cooling scheme's effectiveness must be determined under engine-realistic flow conditions. An aero-thermal investigation was performed to answer these questions. A high-speed linear cascade was commissioned for use under transonic conditions. Once realistic inlet and exit conditions were established, the heat transfer measurement technique used was qualified. An infrared thermography technique was used to obtain a detailed time history of the surface temperature, which was used to reconstruct heat flux and calculate heat transfer coefficients. Several processing techniques were compared to determine that a technique using an impulse response digital filter in the frequency domain has the smallest uncertainty, is the most consistent and is the most computationally efficient. Heat transfer tests were then performed on a flat blade tip under transonic and low-speed flow conditions, and results showed both qualitative and quantitative differences, highlighting the need for testing at engine-realistic conditions. A heat transfer tip gap survey was then performed on a flat tip, and this agreed well with an independent computational study. Uncooled and cooled winglet tip heat transfer was also examined, showing that the uncooled winglet has nearly 3.2 times the area-averaged heat load of a flat tip and the cooled winglet has nearly 3.4 times the area-averaged heat load of a flat tip. Cooled winglet heat transfer results showed enhanced heat transfer compared to the uncooled winglet and an increase in film cooling effectiveness with a smaller tip gap. Reflecting the complexity of testing at high-speed conditions, these are the first detailed, spatially-resolved heat transfer results on the blade tip under transonic conditions. Aerodynamic loss measurements were obtained using a specially-designed three-hole probe and a single-hole probe to resolve the near-casing region. The flat tip experimental and computational results agree well. The winglet results showed a decrease in loss with coolant injection. Finally, a numerical study is carried out to investigate the influence of 2-D corner conduction on the accuracy of heat transfer measurements when using the conventional semi-infinite 1-D assumption. The errors in the conventionally processed heat transfer coefficient are shown to be very high around the corner. A relatively simple and efficient new correction method has been developed and shown to be effective.

Subjects/Keywords: 629.132; Aerodynamics and heat transfer; Aero engines; Mathematical modeling (engineering); Turbomachinery hypersonics and aerodynamics; High-Pressure Turbine; Experimental; High-Speed Linear Cascade; Transonic Flow Conditions; Cooled Winglet; Tip Gap Survey; Over-tip Leakage Flow; Heat Transfer Measurement Techniques; Infrared Thermography; Spatially-resolved; Heat Flux Reconstruction; Impulse Technique; Unshrouded Blade Tip Heat Transfer; Film Cooling Effectiveness; Net Heat Flux Reduction; Aerodynamic Loss; Three-hole Probe; 2-D Corner Conduction; Lateral Corner Correction Coefficient

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

APA (6th Edition):

O'Dowd, D. O. (2010). Aero-thermal performance of transonic high-pressure turbine blade tips. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:e7b8e7d0-4973-4757-b4df-415723e7562f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580863

Chicago Manual of Style (16th Edition):

O'Dowd, Devin Owen. “Aero-thermal performance of transonic high-pressure turbine blade tips.” 2010. Doctoral Dissertation, University of Oxford. Accessed July 10, 2020. http://ora.ox.ac.uk/objects/uuid:e7b8e7d0-4973-4757-b4df-415723e7562f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580863.

MLA Handbook (7th Edition):

O'Dowd, Devin Owen. “Aero-thermal performance of transonic high-pressure turbine blade tips.” 2010. Web. 10 Jul 2020.

Vancouver:

O'Dowd DO. Aero-thermal performance of transonic high-pressure turbine blade tips. [Internet] [Doctoral dissertation]. University of Oxford; 2010. [cited 2020 Jul 10]. Available from: http://ora.ox.ac.uk/objects/uuid:e7b8e7d0-4973-4757-b4df-415723e7562f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580863.

Council of Science Editors:

O'Dowd DO. Aero-thermal performance of transonic high-pressure turbine blade tips. [Doctoral Dissertation]. University of Oxford; 2010. Available from: http://ora.ox.ac.uk/objects/uuid:e7b8e7d0-4973-4757-b4df-415723e7562f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580863

.