subject:(copper sulfide)

University of Guelph

1. Un, N. Serhat. A New Methodology for the Synthesis of Metal Sulfide Particles.

Degree: MS, Department of Chemistry, 2013, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/6670

► In this thesis, a facile methodology for the synthesis of CdS and PbS particles using novel thiobisphthalimide (D1) and dithiobisphthalimide (D2) organic sulfur precursors is… (more)

Subjects/Keywords: metal sulfide; semiconductors; lead sulfide; cadmium sulfide; copper sulfide; oriented attachment

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

APA (6^th Edition):

Un, N. S. (2013). A New Methodology for the Synthesis of Metal Sulfide Particles. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/6670

Chicago Manual of Style (16^th Edition):

Un, N Serhat. “A New Methodology for the Synthesis of Metal Sulfide Particles.” 2013. Masters Thesis, University of Guelph. Accessed April 20, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/6670.

MLA Handbook (7^th Edition):

Un, N Serhat. “A New Methodology for the Synthesis of Metal Sulfide Particles.” 2013. Web. 20 Apr 2021.

Vancouver:

Un NS. A New Methodology for the Synthesis of Metal Sulfide Particles. [Internet] [Masters thesis]. University of Guelph; 2013. [cited 2021 Apr 20]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/6670.

Council of Science Editors:

Un NS. A New Methodology for the Synthesis of Metal Sulfide Particles. [Masters Thesis]. University of Guelph; 2013. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/6670

2. 水野, 康太. 電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer.

Degree: 博士（工学）, 2017, Kyushu Institute of Technology / 九州工業大学

URL: http://hdl.handle.net/10228/5540

近年、主に海外に設置されている電力用油入変圧器において、絶縁紙上に硫化銅が析出して絶縁不良を引き起こす不具合が報告されている。この硫化腐食問題による機器の品質問題は深刻化し、国際電気標準会議（IEC：International Electrotechnical Commission）のTC 10会議では硫化腐食問題に関する状況と検討結果の報告がなされ、国際大電力システム会議（CIGRE：International Council on Large Electric Systems）では硫化腐食のメカニズム、診断方法、抑制方法とリスクアセスメントのガイドラインを作成すべく、CIGRE A2-32が設立された。筆者は、CIGRE活動の一環として、電力用油入変圧器の硫化腐食の原因究明および診断方法の開発に取り組んだ。第1章は『序論』であり、硫化腐食問題に対するこれまでの研究動向を調査して、研究課題を設定した。既報によれば、硫化銅生成の原因物質は金属不活性剤として絶縁油へ添加されたDibenzyl disulfide（以下、DBDS）であると報告されている。硫化銅生成反応は、DBDSが銅線と反応してCu-DBDS錯体を形成し、この錯体が絶縁油へ溶解することで絶縁紙へ移行する。その後、ラジカル反応によりベンジルラジカルとベンジルスルフェニルラジカルが放出されて絶縁紙上で硫化銅に分解するという反応メカニズムが明らかとなっている。しかしながら、絶縁油にDBDSが添加されていても銅線には確実に硫化銅が析出するものの、硫化銅が絶縁紙に析出する油とそうでない油が存在することが分かった。本論文の1つ目の課題は、絶縁紙上での硫化銅析出を促進する影響因子を明確にし、硫化腐食メカニズムを解明することである。絶縁油の硫化腐食性試験方法として、IEC 62535が規定されている。この試験方法は、絶縁油へ紙巻銅板を浸漬して加熱した後、絶縁紙と銅板の目視観察で硫化銅析出の有無を判断する方法である。この試験方法は、絶縁油へのDBDS添加の有無を簡易的に判別する手法として非常に有効である。しかしながら、絶縁油へ添加されたDBDSは銅線との反応で消費されるため、既設器ではDBDSが枯渇している場合がある。この場合、既設器から採取した絶縁油を用いて機器を診断することはできない。本論文の2つ目の課題は、既設器から採取した絶縁油中から硫化銅副生成物を分析して機器の異常を診断する手法を提供することである。さらに、機器の異常診断で危険性を検知した場合、その対策が必要となる。1,2,3-Benzotriazole（以下、BTA）などの金属不活性剤は絶縁油に添加することで硫化銅抑制剤としても効果を発揮する。このBTAは銅線表面に数～数10nmの錯体被膜を形成する。この被膜がDBDSと銅線との反応を防ぐことで硫化銅生成反応を防ぐことができる。このような硫化銅抑制剤を実器に適用して運用するためには、硫化銅抑制効果とその持続性を明らかにすることが必須である。本論文の3つ目の課題は、硫化銅抑制剤の効果の持続性を検証し、実器における抑制対策の運用について考察することである。第2章には、『絶縁紙上での硫化銅生成メカニズムの解明』を記述する。絶縁紙への硫化銅析出の影響因子を明らかにするため、酸素と酸化防止剤である2,6-Di-tert-butyl-p-cresol（以下、DBPC）の影響を検証した。その結果、酸素とDBPCによって絶縁紙上の硫化銅析出が促進されることが明らかとなった。硫化銅生成反応においてCu-DBDS錯体はラジカル反応で硫化銅へ分解するが、錯体が分解してラジカルを放出した瞬間に他のラジカルがあれば、硫化銅にならず錯体へ戻ることができる。DBPCは酸素によってラジカルを放出してDBPCラジカルへと変化し、Cu-S-DBPC錯体が形成すると考えられる。この錯体も油中に溶解することができるため、絶縁油中での錯体寿命が長くなることで絶縁紙へ硫化銅が移行しやすくなると考えられる。第3章には、『硫化銅副生成物を用いた既設器の異常診断技術の開発』を記述する。本診断方法は、Cu-DBDS錯体とCu-S-DBPC錯体が硫化銅へ分解する際に放出されるベンジルラジカルとベンジルスルフェニルラジカルから生成される硫化銅副生成物を絶縁油から検出する方法である。IEC 62535を模擬した硫化銅生成試験を実施し、生成される硫化銅副生成物の種類を調査した。その結果、酸素非存在下ではベンジルラジカル同士の反応生成物であるBibenzyl（以下、BiBz）とベンジルラジカルとベンジルスルフェニルラジカルの反応生成物であるDibenzyl sulfide（以下、DBS）が生成することが分かった。酸素存在下では、ベンジルラジカルの酸化によって生成するベンジルペルオキシラジカルからベンジルアルコール、ベンズアルデヒド及び安息香酸が生成することが分かった。さらに、絶縁油中にDBPCが添加されている場合には、ベンジルラジカルとDBPCラジカルの反応生成物が生成されることを明らかとした。これらの硫化銅副生成物はDBDSが枯渇した後も絶縁油から長期間検出可能であるため、既設器の硫化銅生成を診断する指標となる。第4章には、『硫化腐食抑制対策の検討』について記述する。硫化銅抑制剤の効果とその持続性について検証した。硫化銅抑制剤は熱および酸素によって劣化することで、その効果を失うことが分かった。このため、絶縁油中の硫化銅抑制剤濃度を管理して濃度が低下した場合には機器への追加添加が必要となる。第5章は、本論文の『総括』である。前述した絶縁紙上での硫化銅生成メカニズム、硫化銅副生成物を用いた既設器の異常診断技術、検討した硫化腐食抑制対策を考慮して変圧器のメンテナンスフローを作成した。このフローによって、機器の運用方法を簡略化できた。本論文では学術的意義の観点から、絶縁紙へ硫化銅析出を促進する影響因子が酸素とDBPCであることを明確にし、これらの因子を絶縁紙上での硫化銅析出メカニズムへ反映させた。さらに、酸素およびDBPCの影響を反映した硫化銅副生成物を明確にし、既設器における硫化腐食の診断を可能とした。また、工学的意義の観点から、構築した硫化銅診断技術を用いた変圧器のメンテナンスフローを作成することができた。

九州工業大学博士学位論文学位記番号:工博甲第388号学位授与年月日:平成27年3月25日

第一章：序論|第二章：絶縁紙上での硫化銅生成メカニズムの解明|第三章：硫化銅副生成物を用いた既設器の異常診断技術の開発|第四章：硫化腐食抑制対策の検討|第五章：総括

平成26年度

Advisors/Committee Members: 匹田, 政幸.

Subjects/Keywords: Transformer; Insulating oil; Copper sulfide; DBDS; Diagnostic

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

APA (6^th Edition):

水野, �. (2017). 電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer. (Thesis). Kyushu Institute of Technology / 九州工業大学. Retrieved from http://hdl.handle.net/10228/5540

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):

水野, 康太. “電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer.” 2017. Thesis, Kyushu Institute of Technology / 九州工業大学. Accessed April 20, 2021. http://hdl.handle.net/10228/5540.

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

MLA Handbook (7^th Edition):

水野, 康太. “電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer.” 2017. Web. 20 Apr 2021.

Vancouver:

水野 �. 電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer. [Internet] [Thesis]. Kyushu Institute of Technology / 九州工業大学; 2017. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10228/5540.

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

Council of Science Editors:

水野 �. 電力用油入変圧器における硫化腐食メカニズムの解明と診断技術の開発 : Elucidation of Mechanism and Development of Diagnostics of Copper Sulfide Corrosion in Oil-immersed Transformer. [Thesis]. Kyushu Institute of Technology / 九州工業大学; 2017. Available from: http://hdl.handle.net/10228/5540

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

University of Alberta

3. Tavana, Aida. Characterization of copper supported on titanosilicates for room temperature H2S adsorption.

Degree: MS, Department of Chemical and Materials Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/m900nt51z

► Hydrogen sulfide (H2S) is a major contaminant of industrial gas streams. Amongst the various methods used for its removal, adsorption by metal oxides is the… (more)

Subjects/Keywords: adsorption; copper; room temperature; hydrogen sulfide; titanosilicate

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

APA (6^th Edition):

Tavana, A. (2012). Characterization of copper supported on titanosilicates for room temperature H2S adsorption. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/m900nt51z

Chicago Manual of Style (16^th Edition):

Tavana, Aida. “Characterization of copper supported on titanosilicates for room temperature H2S adsorption.” 2012. Masters Thesis, University of Alberta. Accessed April 20, 2021. https://era.library.ualberta.ca/files/m900nt51z.

MLA Handbook (7^th Edition):

Tavana, Aida. “Characterization of copper supported on titanosilicates for room temperature H2S adsorption.” 2012. Web. 20 Apr 2021.

Vancouver:

Tavana A. Characterization of copper supported on titanosilicates for room temperature H2S adsorption. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Apr 20]. Available from: https://era.library.ualberta.ca/files/m900nt51z.

Council of Science Editors:

Tavana A. Characterization of copper supported on titanosilicates for room temperature H2S adsorption. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/m900nt51z

University of KwaZulu-Natal

4. Botha, Nandipha Loveness. Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors.

Degree: 2018, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/18041

► Eight dithiocarbamate ligands were synthesized from butylamine, diallylamine, N-ethyl aniline, N-methyl benzyl amine, piperidine, morpholine, dibenzyl amine and phenyl piperizine. Eight copper(II) dithiocarbamate complexes and… (more)

▼ Eight dithiocarbamate ligands were synthesized from butylamine, diallylamine, N-ethyl aniline, N-methyl benzyl amine, piperidine, morpholine, dibenzyl amine and phenyl piperizine. Eight copper(II) dithiocarbamate complexes and Eight silver(I) dithiocarbamate complexes were synthesized. Spectroscopy techniques were used to characterise the obtained compounds. The structure of the synthesized dithiocarbamate ligands was confirmed using NMR spectroscopy. Proton NMR showed all the expected peaks and showed the ligands to be pure with no extra peaks for contaminations. 13C NMR showed the peak corresponding to the carbon in the carbon disulphide resonation at around 200 to 220 ppm in all the ligands confirming their formation. FTIR was carried out for all the compounds, ligands and their corresponding metal complexes. In the ligands the C – S, C = S and C – N vibrations were observed corresponding to the dithio- moiety. In the copper complexes the C – S and C = S frequency merged and gave one vibration which confirmed the coordination of the metal to the ligands. UV-Visible was also used to confirm the geometry of the complexes. The ligands gave the bands corresponding to π – π* and n – π* due to N–C=S and S–C=S groups. The copper complexes showed the intra-ligand transitions and two extra bands in the visible region corresponding to the d-d transition of the square planar geometry of copper(II) complexes. Crystal structures of four complexes were isolated, two copper(II)complexes which confirmed the square planar geometry given by the UV-Vis data and two Silver(I) complexes. However, it turned out that silver complexes obtained are the metal clusters. The sixteen metal dithiocarbamate complexes were used as single source precursors to synthesize thirty-two metal sulphide nanoparticles. Four single source precursors, from each metal ion were thermolyzed at 220°C to study the effect of the precursor on the nanoparticle structural and optical properties. The other four precursors for each metal ion were further thermolyzed at three different temperatures, 220°C, 180°C and 120°C, to study the influence of the temperature on the structural and optical properties of the nanoparticles. The obtained nanoparticles were further studied using p-XRD. The X-ray data showed the copper sulphide nanoparticles to have Cu1.8S digenite phase. Silver sulphide nanoparticles have α-Ag2S phase that is usually obtained at lower temperature. The shape and crystallite sizes of the nanoparticles were determined using TEM/HRTEM. TEM images showed the silver nanoparticles synthesized at 220°C all adapted the same spherical shape that are monodispersed. Their size ranged from 8 nm to 78 nm. When the thermolysis was done at 180°C the sizes ranged from 5 to 71 nm and 2-23 nm when thermolyzed at 120°C. For the copper sulphide nanoparticles synthesized at 220°C the size ranged from 5 to 125 nm. 180°C and 120°C gave size ranges of 10 to 55 nm and 4 to 40 nm respectively. The copper sulphide nanoparticles showed some effect of agglomeration and a… Advisors/Committee Members: Ajibade, Peter Adewale. (advisor).

Subjects/Keywords: Nanotechnology.; Organic nanomaterials.; Inorganic nanomaterials.; Copper sulfide.

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

APA (6^th Edition):

Botha, N. L. (2018). Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/18041

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):

Botha, Nandipha Loveness. “Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors.” 2018. Thesis, University of KwaZulu-Natal. Accessed April 20, 2021. https://researchspace.ukzn.ac.za/handle/10413/18041.

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

MLA Handbook (7^th Edition):

Botha, Nandipha Loveness. “Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors.” 2018. Web. 20 Apr 2021.

Vancouver:

Botha NL. Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors. [Internet] [Thesis]. University of KwaZulu-Natal; 2018. [cited 2021 Apr 20]. Available from: https://researchspace.ukzn.ac.za/handle/10413/18041.

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

Council of Science Editors:

Botha NL. Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors. [Thesis]. University of KwaZulu-Natal; 2018. Available from: https://researchspace.ukzn.ac.za/handle/10413/18041

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

University of Kentucky

5. Wells, Benjamin. Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells.

Degree: 2020, University of Kentucky

URL: https://uknowledge.uky.edu/ece_etds/151

► Nanostructured CdS/Cu2S devices have been simulated using SCAPS-1D to demonstrate enhanced performance over traditional planar device structures. Two designs were examined: a nanowire CdS/planar Cu2S… (more)

Subjects/Keywords: Solar cells; nanostructures; Copper (1) Sulfide; Cadmium Sulfide; SCAPS-1D; Nanotechnology Fabrication

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

APA (6^th Edition):

Wells, B. (2020). Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/ece_etds/151

Chicago Manual of Style (16^th Edition):

Wells, Benjamin. “Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells.” 2020. Masters Thesis, University of Kentucky. Accessed April 20, 2021. https://uknowledge.uky.edu/ece_etds/151.

MLA Handbook (7^th Edition):

Wells, Benjamin. “Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells.” 2020. Web. 20 Apr 2021.

Vancouver:

Wells B. Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells. [Internet] [Masters thesis]. University of Kentucky; 2020. [cited 2021 Apr 20]. Available from: https://uknowledge.uky.edu/ece_etds/151.

Council of Science Editors:

Wells B. Nanostructured Device Designs for Enhanced Performance in CdS/Cu₂S Heterojunction Solar Cells. [Masters Thesis]. University of Kentucky; 2020. Available from: https://uknowledge.uky.edu/ece_etds/151

University of Southern California

6. Norako, Michelle E. Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors.

Degree: PhD, Chemistry, 2013, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/323984/rec/6280

► Metastable semiconductor nanocrystals have been shown to possess new and interesting properties that are highly reliant upon their synthetic reaction parameters. A versatile method for… (more)

Subjects/Keywords: nanocrystals; dialkyl dichalcogenide precursor; copper indium sulfide; copper indium selenide; copper tin selenide; copper germanium selenide; wurtzite; metastable

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

APA (6^th Edition):

Norako, M. E. (2013). Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/323984/rec/6280

Chicago Manual of Style (16^th Edition):

Norako, Michelle E. “Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors.” 2013. Doctoral Dissertation, University of Southern California. Accessed April 20, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/323984/rec/6280.

MLA Handbook (7^th Edition):

Norako, Michelle E. “Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors.” 2013. Web. 20 Apr 2021.

Vancouver:

Norako ME. Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors. [Internet] [Doctoral dissertation]. University of Southern California; 2013. [cited 2021 Apr 20]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/323984/rec/6280.

Council of Science Editors:

Norako ME. Synthesis and characterization of metal chalcogenide semiconductor nanocrystals using dialkyl dichalcogenide precursors. [Doctoral Dissertation]. University of Southern California; 2013. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/323984/rec/6280

University of California – Riverside

7. Zaman, Mohammed Shahriar. Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials.

Degree: Electrical Engineering, 2014, University of California – Riverside

URL: http://www.escholarship.org/uc/item/2w05b99b

► Nature has the ability to mineralize and build intricate nanostructures of inorganic materials with a very high precision. Various bio-molecules can mineralize and control the… (more)

▼ Nature has the ability to mineralize and build intricate nanostructures of inorganic materials with a very high precision. Various bio-molecules can mineralize and control the morphology and composition of inorganic materials at ambient conditions. Inspired by nature, this work focuses on utilizing the M13 virus, a filamentous phage, 880 nm in length and 6 nm in diameter, for mineralizing copper sulfide and copper oxide semiconductor nanomaterials. The various coat proteins of the virus can easily be modified to express different peptides with specific affinity to various inorganic materials. A phage-display technique was utilized to identify a copper sulfide binding peptide expressed on the entire pVIII coat protein of the virus. This modified phage was used for synthesizing copper sulfide nanoparticles along the length of the template. To increase the yield and coverage of the mineralized material on the phage-templates, non-specific electrostatic interactions between a negatively charged phage (E3) and positively charged copper ions were utilized to synthesize copper sulfide at ambient conditions. The mineralized material coated the phage template and was identified to be cubic Cu_1.8S, a non-stoichiometric phase of the copper sulfide material system. The material showed strong optical absorption below 800 nm due to band-to-band transitions and localized surface plasmon resonance (LSPR) peaks in the infrared region. The LSPR peaks increased in absorption and the electrical resistance of the materials decreased with time indicating an increase in the number of free carriers in the material due to exposure at ambient conditions. The free carrier increase was attributed to a compositional change on the surface of the material. The synthesized Cu_1.8S was utilized to fabricate NH₃ gas sensors. These gas sensors showed a high response to NH₃ gas which may be attributed to the large surface-to-volume ratio of the viral-templated nanomaterials. Finally, utilizing the non-specific electrostatic interactions between the E3 phage and positively charged cations, copper oxide nanoparticles were also synthesized along the viral-template. These semiconductor materials were identified to be a mixture of CuO and Cu₂O with a direct optical band gap of 2.87 eV. These viral-templated semiconductor nanomaterials have potential applications for incorporation into future devices.

Subjects/Keywords: Electrical engineering; Nanotechnology; Bio-template; Copper oxide; Copper sulfide; M13 virus; Viral-template

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APA (6^th Edition):

Zaman, M. S. (2014). Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials. (Thesis). University of California – Riverside. Retrieved from http://www.escholarship.org/uc/item/2w05b99b

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):

Zaman, Mohammed Shahriar. “Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials.” 2014. Thesis, University of California – Riverside. Accessed April 20, 2021. http://www.escholarship.org/uc/item/2w05b99b.

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

MLA Handbook (7^th Edition):

Zaman, Mohammed Shahriar. “Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials.” 2014. Web. 20 Apr 2021.

Vancouver:

Zaman MS. Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials. [Internet] [Thesis]. University of California – Riverside; 2014. [cited 2021 Apr 20]. Available from: http://www.escholarship.org/uc/item/2w05b99b.

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

Council of Science Editors:

Zaman MS. Synthesis, Characterization, and Device Applications of Viral-Templated Copper Sulfide and Copper Oxide Semiconductor Nanomaterials. [Thesis]. University of California – Riverside; 2014. Available from: http://www.escholarship.org/uc/item/2w05b99b

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

Colorado State University

8. Riha, Shannon C. Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials.

Degree: PhD, Chemistry, 2011, Colorado State University

URL: http://hdl.handle.net/10217/48175

► With the capability of producing nearly 600 TW annually, solar power is one renewable energy source with the potential to meet a large fraction of… (more)

▼ With the capability of producing nearly 600 TW annually, solar power is one renewable energy source with the potential to meet a large fraction of the world's burgeoning energy demand. To make solar technology cost-competitive with carbon-based fuels, cheaper devices need to be realized. Solution-processed solar cells from nanocrystal inks of earth abundant materials satisfy this requirement. Nonetheless, a major hurdle in commercializing such devices is poor charge transport through nanocrystal thin films. The efficiency of charge transport through nanocrystal thin films is strongly dependent on the quality of the nanocrystals, as well as their optoelectronic properties. Therefore, the first part of this dissertation is focused on synthesizing high quality nanocrystals of Cu2ZnSnS4, a promising earth abundant photovoltaic absorber material. The optoelectronic properties of the nanocrystals were tuned by altering the copper to zinc ratio, as well as by introducing selenium to create Cu2ZnSn(S1-xSex)4 solid solutions. Photoelectrochemical characterization was used to test the Cu2ZnSnS4 and Cu2ZnSn(S1-xSex)4 nanocrystal thin films. The results identify minority carrier diffusion and recombination via the redox shuttle as the major loss mechanisms hindering efficient charge transport through the nanocrystal thin films. One way to solve this issue is to sinter the nanocrystals together, creating large grains for efficient charge transport. Although this may be quick and effective, it can lead to the formation of structural defects, among other issues. To this end, using a different copper-based material, namely Cu2Se, and simple surface chemistry treatments, an alternative route to enhance charge transport through nanocrystals thin films is proposed. Advisors/Committee Members: Parkinson, Bruce A. (advisor), Prieto, Amy L. (advisor), Elliott, C. Michael (committee member), Field, Stuart (committee member), Henry, Charles (committee member), Rappe, Anthony (committee member).

Subjects/Keywords: nanocrystals; photovoltaics; copper selenide; copper zinc tin sulfide; earth abundant materials; photoelectrochemical characterization

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APA (6^th Edition):

Riha, S. C. (2011). Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/48175

Chicago Manual of Style (16^th Edition):

Riha, Shannon C. “Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials.” 2011. Doctoral Dissertation, Colorado State University. Accessed April 20, 2021. http://hdl.handle.net/10217/48175.

MLA Handbook (7^th Edition):

Riha, Shannon C. “Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials.” 2011. Web. 20 Apr 2021.

Vancouver:

Riha SC. Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials. [Internet] [Doctoral dissertation]. Colorado State University; 2011. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10217/48175.

Council of Science Editors:

Riha SC. Tuning optoelectronic properties and understanding charge transport in nanocrystal thin films of earth abundant semiconducting materials. [Doctoral Dissertation]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/48175

University of California – Berkeley

9. Brogan, Lee Jeffery. Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis.

Degree: Chemistry, 2011, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/808386sn

► Two related series of investigations are presented in this dissertation. First, two candidate systems for electrochemical deposition of metal sulfides for photovoltaic applications have been… (more)

Subjects/Keywords: Chemistry; Nanoscience; Copper; Electrochemistry; Iron; Nanomaterials; Sulfide; Voltammetry

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APA (6^th Edition):

Brogan, L. J. (2011). Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/808386sn

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):

Brogan, Lee Jeffery. “Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis.” 2011. Thesis, University of California – Berkeley. Accessed April 20, 2021. http://www.escholarship.org/uc/item/808386sn.

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

MLA Handbook (7^th Edition):

Brogan, Lee Jeffery. “Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis.” 2011. Web. 20 Apr 2021.

Vancouver:

Brogan LJ. Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis. [Internet] [Thesis]. University of California – Berkeley; 2011. [cited 2021 Apr 20]. Available from: http://www.escholarship.org/uc/item/808386sn.

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

Council of Science Editors:

Brogan LJ. Electrochemistry of FeSO₄-Na₂S₂O₃ and CuSO₄-Na₂S₂O₃ Systems for Template-Assisted Nanowire Synthesis. [Thesis]. University of California – Berkeley; 2011. Available from: http://www.escholarship.org/uc/item/808386sn

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

Cornell University

10. Yao, Yuan. Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li.

Degree: M.S., Materials Science and Engineering, Materials Science and Engineering, 2018, Cornell University

URL: http://hdl.handle.net/1813/59759

► Cu2-xS as one of the first tested battery anode material [1] has attracted large amount of attentions due to its high specific theoretical capacity (560… (more)

Subjects/Keywords: Materials Science; Copper sulfide; Lithium ion battery; Nanomaterial; Size dependence

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APA (6^th Edition):

Yao, Y. (2018). Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/59759

Chicago Manual of Style (16^th Edition):

Yao, Yuan. “Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li.” 2018. Masters Thesis, Cornell University. Accessed April 20, 2021. http://hdl.handle.net/1813/59759.

MLA Handbook (7^th Edition):

Yao, Yuan. “Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li.” 2018. Web. 20 Apr 2021.

Vancouver:

Yao Y. Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li. [Internet] [Masters thesis]. Cornell University; 2018. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/1813/59759.

Council of Science Editors:

Yao Y. Reaction Mechanism and Size-dependent Electrochemical Properties Study of Cu2-xS Versus Li. [Masters Thesis]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/59759

Texas A&M University

11. Desai, Ishan. Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles.

Degree: MS, Civil Engineering, 2010, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6973

► Five commercial metal oxide nanoparticles (CuO, SiO2, Fe2O3, TiO2 and Al2O3) have been individually screened for mercury removal in a batch reactor under bicarbonate buffered… (more)

Subjects/Keywords: Mercury removal; nanoparticles; copper sulfide

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APA (6^th Edition):

Desai, I. (2010). Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6973

Chicago Manual of Style (16^th Edition):

Desai, Ishan. “Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles.” 2010. Masters Thesis, Texas A&M University. Accessed April 20, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6973.

MLA Handbook (7^th Edition):

Desai, Ishan. “Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles.” 2010. Web. 20 Apr 2021.

Vancouver:

Desai I. Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles. [Internet] [Masters thesis]. Texas A&M University; 2010. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6973.

Council of Science Editors:

Desai I. Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles. [Masters Thesis]. Texas A&M University; 2010. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6973

12. Vas-Umnuay, Paravee. Growth, characterizations and applications of copper sulfide thin films by solution-based processes.

Degree: PhD, Chemical Engineering, 2013, Oregon State University

URL: http://hdl.handle.net/1957/38765

► Copper sulfides (Cu[subscript x]S) are compound semiconductor materials that exhibit considerable optical and electrical properties varying significantly as a function of the composition. Copper sulfide… (more)

▼ Copper sulfides (Cu[subscript x]S) are compound semiconductor materials that exhibit considerable optical and electrical properties varying significantly as a function of the composition. Copper sulfide thin films can be used in many applications, such as solar control coatings, solar cells, photothermal conversion of solar energy, electroconductive coatings, and microwave shielding coatings. A variety of solution-based and vapor-based techniques are suitable for their deposition. Solution-based processes have the advantages of simplicity, low capital cost, and low processing temperature. In this work, copper sulfide thin film deposition by a number of solution-based processes was investigated. These processes include chemical bath deposition (CBD), Microreactor Assisted Solution Deposition (MASD), and PhotoChemical Deposition (PCD). The growth kinetics of copper sulfide thin films by CBD was monitored using an in-situ quartz crystal microbalance for the first time. CBD growth was studied as a function of time, temperature, concentrations of reactants, and pH. The reaction activation energy was determined based on initial growth rates. The result indicates the rate limiting step of the deposition is the chemical reaction rather than mass transport. The structure, morphology, composition and optical absorption of the films were found to depend strongly on the deposition conditions. Results from the study of CBD reactions indicated the need to de-reduce the undesirable homogeneous particle formation. The MASD process was developed to achieve this objective. The continuous flow process together with the microreactor design not only improve the mixing of reactants and provide a better temporal control over the reaction which result in higher quality films and a higher deposition rate. A particle-free flux was obtained after adjusting the key process parameters (concentration of mixed reactants, solution temperature, substrate temperature, and residence time). Significantly improved copper sulfide thin film deposition with a good selectivity of heterogeneous surface reactions was achieved. PCD basically employs the UV illumination to excite the irradiated region of the substrate in a deposition solution. It has the potential to reduce the homogeneous particle formation. We investigated the growth kinetics of copper sulfide thin films by PCD under various deposition conditions (e.g. pH, substrate position, reactant concentration, deposition time, and temperature) that influence on the film properties and characteristics. Moreover a detailed mathematical model that describes the multiple chemical reactions in the deposition mechanism was also developed in this work to have a better understanding of the reaction mechanism. Reaction rate constants were successfully estimated from the experimental data based on this model. The calculated results agree well with the experimental data. This model could serve as a useful tool for the control and optimization of photochemical deposition of copper sulfide thin films. Both CBD and… Advisors/Committee Members: Chang, Chih-Hung (advisor), Paul, Brian (committee member).

Subjects/Keywords: copper sulfide; Thin films

…10 2.2 CBD of copper sulfide… …x28;c) FFT pattern. .......... 76 3.17 TEM micrographs from copper sulfide films… …annealed copper sulfide thin films on glass substrate… …83 3.20 (a) XRD pattern and (b) SAED pattern of copper sulfide… …84 3.21 Raman spectrum of copper sulfide film deposited on glass substrate at 40°C for 50…

10 more images…

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APA (6^th Edition):

Vas-Umnuay, P. (2013). Growth, characterizations and applications of copper sulfide thin films by solution-based processes. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/38765

Chicago Manual of Style (16^th Edition):

Vas-Umnuay, Paravee. “Growth, characterizations and applications of copper sulfide thin films by solution-based processes.” 2013. Doctoral Dissertation, Oregon State University. Accessed April 20, 2021. http://hdl.handle.net/1957/38765.

MLA Handbook (7^th Edition):

Vas-Umnuay, Paravee. “Growth, characterizations and applications of copper sulfide thin films by solution-based processes.” 2013. Web. 20 Apr 2021.

Vancouver:

Vas-Umnuay P. Growth, characterizations and applications of copper sulfide thin films by solution-based processes. [Internet] [Doctoral dissertation]. Oregon State University; 2013. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/1957/38765.

Council of Science Editors:

Vas-Umnuay P. Growth, characterizations and applications of copper sulfide thin films by solution-based processes. [Doctoral Dissertation]. Oregon State University; 2013. Available from: http://hdl.handle.net/1957/38765

Western Washington University

13. Sumner, Ryan I. (Ryan Isaac). Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators.

Degree: MS, Chemistry, 2016, Western Washington University

URL: https://doi.org/10.25710/q0yt-aa49 ; https://cedar.wwu.edu/wwuet/534

► The sun is the most prominent renewable energy resource. Technologies such as photovoltaics (PVs) have yet to emerge as a cost effective alternative to… (more)

Subjects/Keywords: Chemistry; Copper sulfide; Solar concentrators; Photovoltic power systems; masters theses

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APA (6^th Edition):

Sumner, R. I. (. I. (2016). Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators. (Masters Thesis). Western Washington University. Retrieved from https://doi.org/10.25710/q0yt-aa49 ; https://cedar.wwu.edu/wwuet/534

Chicago Manual of Style (16^th Edition):

Sumner, Ryan I (Ryan Isaac). “Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators.” 2016. Masters Thesis, Western Washington University. Accessed April 20, 2021. https://doi.org/10.25710/q0yt-aa49 ; https://cedar.wwu.edu/wwuet/534.

MLA Handbook (7^th Edition):

Sumner, Ryan I (Ryan Isaac). “Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators.” 2016. Web. 20 Apr 2021.

Vancouver:

Sumner RI(I. Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators. [Internet] [Masters thesis]. Western Washington University; 2016. [cited 2021 Apr 20]. Available from: https://doi.org/10.25710/q0yt-aa49 ; https://cedar.wwu.edu/wwuet/534.

Council of Science Editors:

Sumner RI(I. Copper Indium Disulfide Nanocrystal Luminescent Solar Concentrators. [Masters Thesis]. Western Washington University; 2016. Available from: https://doi.org/10.25710/q0yt-aa49 ; https://cedar.wwu.edu/wwuet/534

University of Toronto

14. Bhaskaran, Ganesh. Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution.

Degree: 2010, University of Toronto

URL: http://hdl.handle.net/1807/25432

►

Stress corrosion cracking (SCC) susceptibility of the phosphorus de-oxidized copper has been evaluated in synthetic seawater polluted by sulfides using slow strain rate test (SSRT).… (more)

Subjects/Keywords: stress corrosion cracking; sulfide corrosion of copper; 0542

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APA (6^th Edition):

Bhaskaran, G. (2010). Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/25432

Chicago Manual of Style (16^th Edition):

Bhaskaran, Ganesh. “Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution.” 2010. Masters Thesis, University of Toronto. Accessed April 20, 2021. http://hdl.handle.net/1807/25432.

MLA Handbook (7^th Edition):

Bhaskaran, Ganesh. “Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution.” 2010. Web. 20 Apr 2021.

Vancouver:

Bhaskaran G. Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution. [Internet] [Masters thesis]. University of Toronto; 2010. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/1807/25432.

Council of Science Editors:

Bhaskaran G. Prediciting the corrosion and stress corrosion performance of copper in anaerobic sulfide solution. [Masters Thesis]. University of Toronto; 2010. Available from: http://hdl.handle.net/1807/25432

Boston College

15. Simpson, Zachary Ian. Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material.

Degree: MS, Chemistry, 2013, Boston College

URL: http://dlib.bc.edu/islandora/object/bc-ir:101241

► In this work, we present our findings regarding the low-temperature, solid-state conversion of Cu₂S nanowires to Cu₂S/Cu₅FeS₄ rod-in-tube structures, Cu₂S/ZnS segmented nanowires, and a full… (more)

Subjects/Keywords: conversion; copper sulfide; energy storage; lithium-ion battery; silicide; solid-state

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APA (6^th Edition):

Simpson, Z. I. (2013). Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material. (Masters Thesis). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:101241

Chicago Manual of Style (16^th Edition):

Simpson, Zachary Ian. “Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material.” 2013. Masters Thesis, Boston College. Accessed April 20, 2021. http://dlib.bc.edu/islandora/object/bc-ir:101241.

MLA Handbook (7^th Edition):

Simpson, Zachary Ian. “Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material.” 2013. Web. 20 Apr 2021.

Vancouver:

Simpson ZI. Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material. [Internet] [Masters thesis]. Boston College; 2013. [cited 2021 Apr 20]. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101241.

Council of Science Editors:

Simpson ZI. Advanced Materials for Energy Conversion and Storage: Low-Temperature, Solid-State Conversion Reactions of Cuprous Sulfide and the Stabilization and Application of Titanium Disilicide as a Lithium-Ion Battery Anode Material. [Masters Thesis]. Boston College; 2013. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101241

Boston College

16. Mayer, Matthew T. Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting.

Degree: PhD, Chemistry, 2013, Boston College

URL: http://dlib.bc.edu/islandora/object/bc-ir:101350

► Semiconductor devices offer promise for efficient conversion of sunlight into other useful forms of energy, in either photovoltaic or photoelectrochemical cell configurations to produce electrical… (more)

▼ Semiconductor devices offer promise for efficient conversion of sunlight into other useful forms of energy, in either photovoltaic or photoelectrochemical cell configurations to produce electrical power or chemical energy, respectively. This dissertation examines ionic and electronic phenomena in some candidate semiconductors and seeks to understand their implications toward solar energy conversion applications. First, copper sulfide (Cu₂S) was examined as a candidate photovoltaic material. It was discovered that its unique property of cation diffusion allows the room-temperature synthesis of vertically-aligned nanowire arrays, a morphology which facilitates study of the diffusion processes. This diffusivity was found to induce hysteresis in the electronic behavior, leading to the phenomena of resistive switching and negative differential resistance. The Cu₂S were then demonstrated as morphological templates for solid-state conversion into different types of heterostructures, including segmented and rod-in-tube morphologies. Near-complete conversion to ZnS, enabled by the out-diffusion of Cu back into the substrate, was also achieved. While the ion diffusion property likely hinders the reliability of Cu₂S in photovoltaic applications, it was shown to enable useful electronic and ionic behaviors. Secondly, iron oxide (Fe₂O₃, hematite) was examined as a photoanode for photoelectrochemical water splitting. Its energetic limitations toward the water electrolysis reactions were addressed using two approaches aimed at achieving greater photovoltages and thereby improved water splitting efficiencies. In the first, a built-in n-p junction produced an internal field to drive charge separation and generate photovoltage. In the second, Fe₂O₃ was deposited onto a smaller band gap material, silicon, to form a device capable of producing enhanced total photovoltage by a dual-absorber Z-scheme mechanism. Both approaches resulted in a cathodic shift of the photocurrent onset potential, signifying enhanced power output and progress toward the unassisted photoelectrolysis of water. Advisors/Committee Members: Dunwei Wang (Thesis advisor).

Subjects/Keywords: copper sulfide; ion diffusion; iron oxide; nanowires; photoelectrochemistry; water splitting

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APA (6^th Edition):

Mayer, M. T. (2013). Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting. (Doctoral Dissertation). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:101350

Chicago Manual of Style (16^th Edition):

Mayer, Matthew T. “Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting.” 2013. Doctoral Dissertation, Boston College. Accessed April 20, 2021. http://dlib.bc.edu/islandora/object/bc-ir:101350.

MLA Handbook (7^th Edition):

Mayer, Matthew T. “Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting.” 2013. Web. 20 Apr 2021.

Vancouver:

Mayer MT. Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting. [Internet] [Doctoral dissertation]. Boston College; 2013. [cited 2021 Apr 20]. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101350.

Council of Science Editors:

Mayer MT. Ionic and electronic behaviors of earth-abundant semiconductor materials and their applications toward solar energy harvesting. [Doctoral Dissertation]. Boston College; 2013. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101350

University of Illinois – Chicago

17. Johnson, Brittany J. Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase.

Degree: 2017, University of Illinois – Chicago

URL: http://hdl.handle.net/10027/22057

► Nitrous oxide (N2O) is one of the most harmful greenhouse gases inducing global warming, and also one of the leading causes towards the depletion of… (more)

Subjects/Keywords: nitrous oxide; CuZ*; biomimetic; inorganic; copper-sulfide; metalloenzyme models

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APA (6^th Edition):

Johnson, B. J. (2017). Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/22057

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):

Johnson, Brittany J. “Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase.” 2017. Thesis, University of Illinois – Chicago. Accessed April 20, 2021. http://hdl.handle.net/10027/22057.

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

MLA Handbook (7^th Edition):

Johnson, Brittany J. “Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase.” 2017. Web. 20 Apr 2021.

Vancouver:

Johnson BJ. Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase. [Internet] [Thesis]. University of Illinois – Chicago; 2017. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10027/22057.

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

Council of Science Editors:

Johnson BJ. Synthetic Copper-Sulfide Complexes as Models for the Active Sites in Nitrous Oxide Reductase. [Thesis]. University of Illinois – Chicago; 2017. Available from: http://hdl.handle.net/10027/22057

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

18. Hautier, Alexandre. Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation.

Degree: Docteur es, Sciences chimiques, 2018, Aix Marseille Université

URL: http://www.theses.fr/2018AIXM0758

►

La catalyse permet de réaliser des transformations efficaces à un coût énergétique plus faible qu'avec des réactions non catalysées. Le développement d’un catalyseur peut souvent… (more)

▼

La catalyse permet de réaliser des transformations efficaces à un coût énergétique plus faible qu'avec des réactions non catalysées. Le développement d’un catalyseur peut souvent être inspiré par la Nature qui parvient à réaliser des transformations chimiques difficiles avec de hauts rendements et une grande sélectivité et ce en milieu aqueux dans des conditions douces. Par exemple, les protéines dépendantes du cuivre peuvent oxyder une large gamme de substrats. Inspirés par les systèmes biologiques, les metallopeptides ont récemment émergés en tant que plate-forme fiable pour développer de nouveaux catalyseurs grâce à leur facilité d’accès, de maniement et d’affinage de leurs propriétés. Dans cette thèse, nous décrivons la synthèse d’une famille de décapeptides bio-inspirés, qui contiennent des résidus His et Asp permettant de coordiner des ions métalliques. Les données indiquent que tous les peptides se lient au cuivre et qu’ils forment, à un pH proche de la neutralité, une espèce cuivre (II) majoritaire, similaire entre tous les peptides. Dans ces complexes, les peptides lient le cuivre (II) par les chaines latérales des résidus His et Asp. Pour finir, la capacité de ces systèmes ainsi que des complexes cuivre (II)-amyloid-β à catalyser des transformations oxydantes en solution aqueuse en utilisant H2O2 comme oxydants a été évaluée. Cette étude révèle que i) la structure des peptides à un impact sur les rendements catalytiques et sur l’obtention d’excès énantiomérique, et que ii) les complexes cuivre (II)-amyloid-β sont moins performants que nos systèmes cuivre (II)-peptide

Catalysis gives access to efficient transformations at a lower cost in energy and generally offers possibilities to reduce or eliminate the need for and the generation of hazardous compounds . The development of a catalyst is often inspired by Nature that performs challenging chemical transformations with high rates and high selectivity under mild conditions and aqueous media. For example, copper dependent proteins can react to oxidize a broad range of substrates. Inspired by biological systems, metallopeptides have recently emerged as reliable platforms to evolve new catalysts because they are chemically accessible, easy to handle and fine-tune.In this work we synthetized a family of bioinspired decapeptides containing His and Asp residues as metal ion coordinating amino acids. Their copper coordination properties were studied using pH potentiometry, and different spectroscopic techniques (UV-Vis, CD, EPR, NMR). The data indicates that all the peptides bind copper and form similar major copper(II) species at a pH close to neutrality where copper (II) is coordinated by the side-chains of His and Asp residues. Finally, the capabilities of these metallopeptides to perform a variety of oxidative transformations in aqueous solution at room temperature, using H2O2 as the oxidant were evaluated in parallel with that of amyloid-β peptides copper (II) complexes. This study revealed that i) the scaffold of the designed peptides had an impact on the…

Advisors/Committee Members: Tron, Thierry (thesis director), Iranzo, Olga (thesis director).

Subjects/Keywords: Metallopeptide; Oxydation; Catalyse; Cuivre; Sulfure; Metallopeptide; Oxidation; Catalysis; Copper; Sulfide

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

APA (6^th Edition):

Hautier, A. (2018). Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation. (Doctoral Dissertation). Aix Marseille Université. Retrieved from http://www.theses.fr/2018AIXM0758

Chicago Manual of Style (16^th Edition):

Hautier, Alexandre. “Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation.” 2018. Doctoral Dissertation, Aix Marseille Université. Accessed April 20, 2021. http://www.theses.fr/2018AIXM0758.

MLA Handbook (7^th Edition):

Hautier, Alexandre. “Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation.” 2018. Web. 20 Apr 2021.

Vancouver:

Hautier A. Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation. [Internet] [Doctoral dissertation]. Aix Marseille Université 2018. [cited 2021 Apr 20]. Available from: http://www.theses.fr/2018AIXM0758.

Council of Science Editors:

Hautier A. Synthesis and characterization of copper-peptide systems for oxidation catalysis : Synthèse et caractérisation de systèmes cuivre-peptide pour la catalyse d’oxydation. [Doctoral Dissertation]. Aix Marseille Université 2018. Available from: http://www.theses.fr/2018AIXM0758

University of Minnesota

19. Williams, Bryce. Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells.

Degree: PhD, Chemical Engineering, 2016, University of Minnesota

URL: http://hdl.handle.net/11299/182229

► A scalable and inexpensive renewable energy source is needed to meet the expected increase in electricity demand throughout the developed and developing world in the… (more)

▼ A scalable and inexpensive renewable energy source is needed to meet the expected increase in electricity demand throughout the developed and developing world in the next 15 years without contributing further to global warming through CO2 emissions. Photovoltaics may meet this need but current technologies are less than ideal requiring complex manufacturing processes and/or use of toxic, rare-earth materials. Copper zinc tin sulfide (Cu2ZnSnS4, CZTS) solar cells offer a true "green" alternative based upon non-toxic and abundant elements. Solution-based processes utilizing CZTS nanocrystal dispersions followed by high temperature annealing have received significant research attention due to their compatibility with traditional roll-to-roll coating processes. In this work, CZTS nanocrystal (5 – 35 nm diameters) dispersions were utilized as a production pathway to form solar absorber layers. Aerosol-based coating methods (aerosol jet printing and ultrasonic spray coating) were optimized for formation of dense, crack-free CZTS nanocrystal coatings. The primary variables underlying determination of coating morphology within the aerosol-coating parameter space were investigated. It was found that the liquid content of the aerosol droplets at the time of substrate impingement play a critical role. Evaporation of the liquid from the aerosol droplets during coating was altered through changes to coating parameters as well as to the CZTS nanocrystal dispersions. In addition, factors influencing conversion of CZTS nanocrystal coatings into dense, large-grained polycrystalline films suitable for solar cell development during thermal annealing were studied. The roles nanocrystal size, carbon content, sodium uptake, and sulfur pressure were found to have pivotal roles in film microstructure evolution. The effects of these parameters on film morphology, grain growth rates, and chemical makeup were analyzed from electron microscopy images as well as compositional analysis techniques. From these results, a deeper understanding of the interplay between the numerous annealing variables was achieved and improved annealing processes were developed.

Subjects/Keywords: aerosol coating; Copper zinc tin sulfide; crystal growth; nanocrystal

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

APA (6^th Edition):

Williams, B. (2016). Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/182229

Chicago Manual of Style (16^th Edition):

Williams, Bryce. “Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells.” 2016. Doctoral Dissertation, University of Minnesota. Accessed April 20, 2021. http://hdl.handle.net/11299/182229.

MLA Handbook (7^th Edition):

Williams, Bryce. “Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells.” 2016. Web. 20 Apr 2021.

Vancouver:

Williams B. Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells. [Internet] [Doctoral dissertation]. University of Minnesota; 2016. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/11299/182229.

Council of Science Editors:

Williams B. Processing of Copper Zinc Tin Sulfide Nanocrystal Dispersions for Thin Film Solar Cells. [Doctoral Dissertation]. University of Minnesota; 2016. Available from: http://hdl.handle.net/11299/182229

Kansas State University

20. Wierman, Christopher Thomas. Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces.

Degree: MS, Department of Geology, 2018, Kansas State University

URL: http://hdl.handle.net/2097/39306

► It is generally accepted that beneath flood basalt provinces, Cu-Ni-PGE sulfide deposits may be found (Ridley, 2013). The focus of this study is the Steens… (more)

Subjects/Keywords: Copper; Plagioclase; Oregon sunstones; Immiscible sulfide textures; Flood basalt

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

APA (6^th Edition):

Wierman, C. T. (2018). Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces. (Masters Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/39306

Chicago Manual of Style (16^th Edition):

Wierman, Christopher Thomas. “Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces.” 2018. Masters Thesis, Kansas State University. Accessed April 20, 2021. http://hdl.handle.net/2097/39306.

MLA Handbook (7^th Edition):

Wierman, Christopher Thomas. “Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces.” 2018. Web. 20 Apr 2021.

Vancouver:

Wierman CT. Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces. [Internet] [Masters thesis]. Kansas State University; 2018. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/2097/39306.

Council of Science Editors:

Wierman CT. Copper partitioning in mid-Miocene flood basalts from the Northern Great Basin (U.S.A): implications for Cu behavior in flood basalt provinces. [Masters Thesis]. Kansas State University; 2018. Available from: http://hdl.handle.net/2097/39306

Vanderbilt University

21. Arrowood, Summer Laurel. Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides.

Degree: MS, Chemistry, 2016, Vanderbilt University

URL: http://hdl.handle.net/1803/12035

► The rational design of hybrid nanoparticles is a powerful tool in harnessing nanoscale properties of several different materials in a single whole. The first portion… (more)

Subjects/Keywords: CuS; Cu2S; shelling; Au2S; second harmonic generation; semiconductor nanoparticles; cation exchange; hybrid nanoparticles; gold sulfide; copper sulfide; silica; Gold

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

APA (6^th Edition):

Arrowood, S. L. (2016). Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides. (Thesis). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/12035

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):

Arrowood, Summer Laurel. “Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides.” 2016. Thesis, Vanderbilt University. Accessed April 20, 2021. http://hdl.handle.net/1803/12035.

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

MLA Handbook (7^th Edition):

Arrowood, Summer Laurel. “Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides.” 2016. Web. 20 Apr 2021.

Vancouver:

Arrowood SL. Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides. [Internet] [Thesis]. Vanderbilt University; 2016. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/1803/12035.

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

Council of Science Editors:

Arrowood SL. Synthetic Routes to Hybrid Nanoparticles of Gold and Copper Sulfides. [Thesis]. Vanderbilt University; 2016. Available from: http://hdl.handle.net/1803/12035

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

University of Hong Kong

22. Cai, Yu. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.

Degree: 2015, University of Hong Kong

URL: http://hdl.handle.net/10722/239219

Subjects/Keywords: Nanowires - Electric properties; Cadmium sulfide; Copper sulfide

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

APA (6^th Edition):

Cai, Y. (2015). Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/239219

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):

Cai, Yu. “Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.” 2015. Thesis, University of Hong Kong. Accessed April 20, 2021. http://hdl.handle.net/10722/239219.

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

MLA Handbook (7^th Edition):

Cai, Yu. “Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.” 2015. Web. 20 Apr 2021.

Vancouver:

Cai Y. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. [Internet] [Thesis]. University of Hong Kong; 2015. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10722/239219.

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

Council of Science Editors:

Cai Y. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. [Thesis]. University of Hong Kong; 2015. Available from: http://hdl.handle.net/10722/239219

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

University of Hong Kong

23. 蔡宇. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.

Degree: 2015, University of Hong Kong

URL: http://hdl.handle.net/10722/226737

Subjects/Keywords: Nanowires - Electric properties; Copper sulfide; Cadmium sulfide

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❌

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

APA (6^th Edition):

蔡宇. (2015). Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/226737

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

Chicago Manual of Style (16^th Edition):

蔡宇. “Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.” 2015. Thesis, University of Hong Kong. Accessed April 20, 2021. http://hdl.handle.net/10722/226737.

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

MLA Handbook (7^th Edition):

蔡宇. “Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires.” 2015. Web. 20 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

蔡宇. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. [Internet] [Thesis]. University of Hong Kong; 2015. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10722/226737.

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

Council of Science Editors:

蔡宇. Thermoelectric properties of cadmium sulfide/cuprous sulfide superlattice nanowires. [Thesis]. University of Hong Kong; 2015. Available from: http://hdl.handle.net/10722/226737

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

University of Georgia

24. Harris, Savannah. Metal-sulfide dynamics in a constructed wetland in the southeastern United States.

Degree: 2016, University of Georgia

URL: http://hdl.handle.net/10724/34225

► The DOE-NNSA Tritium Processing Facility at the Savannah River Site (SRS) releases effluent averaging 31.0 and 20.5 ppb Cu and Zn, respectively, to H-02 constructed… (more)

Subjects/Keywords: acid-volatile sulfide; simultaneously extracted metals; constructed wetland; biogeochemistry; resuspension; copper, zinc; lead; DGT

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

APA (6^th Edition):

Harris, S. (2016). Metal-sulfide dynamics in a constructed wetland in the southeastern United States. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/34225

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):

Harris, Savannah. “Metal-sulfide dynamics in a constructed wetland in the southeastern United States.” 2016. Thesis, University of Georgia. Accessed April 20, 2021. http://hdl.handle.net/10724/34225.

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

MLA Handbook (7^th Edition):

Harris, Savannah. “Metal-sulfide dynamics in a constructed wetland in the southeastern United States.” 2016. Web. 20 Apr 2021.

Vancouver:

Harris S. Metal-sulfide dynamics in a constructed wetland in the southeastern United States. [Internet] [Thesis]. University of Georgia; 2016. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10724/34225.

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

Council of Science Editors:

Harris S. Metal-sulfide dynamics in a constructed wetland in the southeastern United States. [Thesis]. University of Georgia; 2016. Available from: http://hdl.handle.net/10724/34225

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

University of California – Berkeley

25. Rivest, Jessica Louis Baker. Nanocrystal Photovoltaics: The Case of Cu2S-CdS.

Degree: Mechanical Engineering, 2011, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/4fz2v7wg

► In this dissertation, fine control over the morphology and composition of a nanostructured semiconductor thin film is demonstrated at a degree not previously possible. While… (more)

▼ In this dissertation, fine control over the morphology and composition of a nanostructured semiconductor thin film is demonstrated at a degree not previously possible. While such control is beneficial in a variety of optical and electrical devices, this research was performed from the perspective of photovoltaics.A new architecture is presented for low cost and high conversion efficiency photovoltaics, utilizing self-assembled nanocrystals. A method is introduced for vertically aligning nanorods using a controlled-evaporation self-assembly technique, enabling the uniform alignment of nanorods on a square-centimeter substrate. Such meso-scale assembly and optimization required the development of a morphology quantification technique. The technique presented here utilizes grazing incidence x-ray diffraction to assemble a quantitative pole figure, or nanorod orientation histogram, and can be used with any thin film. After nanorod assembly, an asymmetric electrical junction (required for photovoltaic operation) is achieved in each rod using a cation exchange technique, which can be performed reliably and reversibly on-chip. This results in a film comprising a massively parallel array of single-crystal nanodiodes. Electrical measurements of these films show rectified behavior and reveal a photocurrent upon illumination of the aligned and cation-exchanged films. Finally, the stability of the Cu2S phase is investigated as a function of nanocrystal size. The low chalcocite to high chalcocite solid-solid crystallographic phase transition is found to occur at temperatures depressed 60 Kelvin below the bulk phase transition temperature.The research summarized in this dissertation describes a set of synthetic and analytical techniques that enable nanoscopic control of morphology and composition in device-scale semiconductor thin films. Such control may be leveraged to precisely manipulate the flow of charge carriers in optoelectronic devices. Due to the simple wet chemical processes employed in the fabrication of these devices, the techniques presented suggest the possibility of very low cost.This work provides a proof-of-concept for a next-generation photovoltaic device architecture, and serves as a set of guidelines for achieving the desired crystallographic phase, crystallographic orientation, and compositional patterning desired in a nanostructured semiconductor thin film.

Subjects/Keywords: Materials Science; Energy; Physical chemistry; cation exchange; copper sulfide; epitaxial heterojunction; morphology quantification; photovoltaics; self assembly

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APA (6^th Edition):

Rivest, J. L. B. (2011). Nanocrystal Photovoltaics: The Case of Cu2S-CdS. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/4fz2v7wg

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):

Rivest, Jessica Louis Baker. “Nanocrystal Photovoltaics: The Case of Cu2S-CdS.” 2011. Thesis, University of California – Berkeley. Accessed April 20, 2021. http://www.escholarship.org/uc/item/4fz2v7wg.

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

MLA Handbook (7^th Edition):

Rivest, Jessica Louis Baker. “Nanocrystal Photovoltaics: The Case of Cu2S-CdS.” 2011. Web. 20 Apr 2021.

Vancouver:

Rivest JLB. Nanocrystal Photovoltaics: The Case of Cu2S-CdS. [Internet] [Thesis]. University of California – Berkeley; 2011. [cited 2021 Apr 20]. Available from: http://www.escholarship.org/uc/item/4fz2v7wg.

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

Council of Science Editors:

Rivest JLB. Nanocrystal Photovoltaics: The Case of Cu2S-CdS. [Thesis]. University of California – Berkeley; 2011. Available from: http://www.escholarship.org/uc/item/4fz2v7wg

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

University of Saskatchewan

26. Ahmad, Syed A.G. 1992-. A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT.

Degree: 2016, University of Saskatchewan

URL: http://hdl.handle.net/10388/7571

► Development of a novel aqueous hydrogen sulfide (H2S) detector is presented in this thesis. Nano copper (II) oxide (CuO) was selected as the detector material.… (more)

Subjects/Keywords: Copper (II) oxide; CuO; hydrogen sulfide; H2S; Raman spectroscopy; lab-on-a-chip; point-of-care

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APA (6^th Edition):

Ahmad, S. A. G. 1. (2016). A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/7571

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):

Ahmad, Syed A G 1992-. “A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT.” 2016. Thesis, University of Saskatchewan. Accessed April 20, 2021. http://hdl.handle.net/10388/7571.

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

MLA Handbook (7^th Edition):

Ahmad, Syed A G 1992-. “A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT.” 2016. Web. 20 Apr 2021.

Vancouver:

Ahmad SAG1. A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT. [Internet] [Thesis]. University of Saskatchewan; 2016. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10388/7571.

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

Council of Science Editors:

Ahmad SAG1. A NOVEL H2S MONITOR USING COPPER (II) OXIDE AND RAMAN SPECTROSCOPY: A PROOF OF CONCEPT. [Thesis]. University of Saskatchewan; 2016. Available from: http://hdl.handle.net/10388/7571

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

27. Gincy Sunny; Dr. Vijayakumar K P. Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication.

Degree: 2019, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/5512

Subjects/Keywords: Solar cells; Solar energy; Copper Tin Sulfide - Solar cells

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APA (6^th Edition):

P, G. S. D. V. K. (2019). Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/5512

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):

P, Gincy Sunny; Dr. Vijayakumar K. “Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication.” 2019. Thesis, Cochin University of Science and Technology. Accessed April 20, 2021. http://dyuthi.cusat.ac.in/purl/5512.

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

MLA Handbook (7^th Edition):

P, Gincy Sunny; Dr. Vijayakumar K. “Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication.” 2019. Web. 20 Apr 2021.

Vancouver:

P GSDVK. Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication. [Internet] [Thesis]. Cochin University of Science and Technology; 2019. [cited 2021 Apr 20]. Available from: http://dyuthi.cusat.ac.in/purl/5512.

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

Council of Science Editors:

P GSDVK. Copper tin sulfide thin film through chemical spray pyrolysis material characterization and trials on device fabrication. [Thesis]. Cochin University of Science and Technology; 2019. Available from: http://dyuthi.cusat.ac.in/purl/5512

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

University of Waterloo

28. DePalma, Sarah G.S. Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity.

Degree: 2009, University of Waterloo

URL: http://hdl.handle.net/10012/4406

► Copper-induced toxicity in aqueous systems depends on its speciation and bioavailability. Dissolved organic matter (DOM) and reduced sulfur species can complex copper, influencing speciation and… (more)

▼ Copper-induced toxicity in aqueous systems depends on its speciation and bioavailability. Dissolved organic matter (DOM) and reduced sulfur species can complex copper, influencing speciation and decreasing bioavailability. DOM composition in estuaries can vary, depending on allochthonous, autochthonous, or wastewater source. At a molecular level, variability in DOM quality potentially results in different copper binding affinities. The aim of this study was to characterize and quantify DOM and reduced sulfur in estuaries and investigate possible correlations between these parameters and the capacity to complex copper, reducing its toxicity. This study will have implications on the development of marine-specific toxicity prediction models. DOM was characterized in seventy-one estuarine samples through DOC concentration and fluorescence measurements, combined with spectral resolution techniques, to quantify humic-, fulvic-, tryptophan-, and tyrosine-like fractions. Reduced sulfur was measured by the chromium-reducible sulfide (CRS) technique. Acute copper toxicity tests were done on a subset of samples expressing extreme DOC, fluorescent allochthonous, autochthonous, and CRS concentrations. The results showed significant differences in DOM quality, independent of DOC concentration. In terms of total fluorescent material, humic-like material ranged from 9.48% to 66.1%, followed by fulvic-like with a range of 14.5% to 63.2%, and 0.00% to 36.5% for tryptophan-like and 0.64% to 25.2% for tyrosine-like material. CRS was widely variable among the samples; concentrations ranging from 0.5 nM to 7800 nM. The toxicity results suggested DOC was a very good predictive measure of copper EC50 in estuaries (r2 = 0.84) independent of DOM quality. Furthermore, CRS was saturated at low copper concentrations indicating strong binding sites for copper, suggesting that while CRS is protective, it does not bind copper at toxicologically relevant concentrations and therefore is not a good predictive measure of copper toxicity.

Subjects/Keywords: DIssolved organic matter; Chromium reducible sulfide; Marine; Copper

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

APA (6^th Edition):

DePalma, S. G. S. (2009). Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/4406

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):

DePalma, Sarah G S. “Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity.” 2009. Thesis, University of Waterloo. Accessed April 20, 2021. http://hdl.handle.net/10012/4406.

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

MLA Handbook (7^th Edition):

DePalma, Sarah G S. “Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity.” 2009. Web. 20 Apr 2021.

Vancouver:

DePalma SGS. Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity. [Internet] [Thesis]. University of Waterloo; 2009. [cited 2021 Apr 20]. Available from: http://hdl.handle.net/10012/4406.

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

Council of Science Editors:

DePalma SGS. Characterization of Dissolved Organic Matter and Reduced Sulfur in Coastal Marine and Estuarine Environments: Implications for Protective Effects on Acute Copper Toxicity. [Thesis]. University of Waterloo; 2009. Available from: http://hdl.handle.net/10012/4406

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

University of Kentucky

29. Gutta, Venkatesh. INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS.

Degree: 2011, University of Kentucky

URL: https://uknowledge.uky.edu/gradschool_theses/654

► Thin film solar cells of Copper Indium Telluride and Cadmium Sulfide junctions were fabricated on plain ITO glass slides and also on those coated with… (more)

Subjects/Keywords: Copper Indium Telluride (CIT); Electrodeposition; Chemical Bath Deposition; Cadmium Sulfide; Cadmium Telluride; Thermal Evaporation; Electrical and Computer Engineering; Engineering

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

APA (6^th Edition):

Gutta, V. (2011). INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/gradschool_theses/654

Chicago Manual of Style (16^th Edition):

Gutta, Venkatesh. “INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS.” 2011. Masters Thesis, University of Kentucky. Accessed April 20, 2021. https://uknowledge.uky.edu/gradschool_theses/654.

MLA Handbook (7^th Edition):

Gutta, Venkatesh. “INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS.” 2011. Web. 20 Apr 2021.

Vancouver:

Gutta V. INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS. [Internet] [Masters thesis]. University of Kentucky; 2011. [cited 2021 Apr 20]. Available from: https://uknowledge.uky.edu/gradschool_theses/654.

Council of Science Editors:

Gutta V. INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS. [Masters Thesis]. University of Kentucky; 2011. Available from: https://uknowledge.uky.edu/gradschool_theses/654

30. You, Liang. Copper Sulfide Solid-State Electrolytic Memory Devices.

Degree: PhD, Electrical Engineering, 2007, Case Western Reserve University School of Graduate Studies

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1160337918

► Copper sulfide thin films with electrical switching and memory effect were grown using a chemical vapor reaction apparatus. The formation of copper sulfide film undergoes… (more)

Subjects/Keywords: Solid-State Electrolytic; Memory; Microfabrication; Copper Sulfide; MEMS

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

APA (6^th Edition):

You, L. (2007). Copper Sulfide Solid-State Electrolytic Memory Devices. (Doctoral Dissertation). Case Western Reserve University School of Graduate Studies. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1160337918

Chicago Manual of Style (16^th Edition):

You, Liang. “Copper Sulfide Solid-State Electrolytic Memory Devices.” 2007. Doctoral Dissertation, Case Western Reserve University School of Graduate Studies. Accessed April 20, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1160337918.

MLA Handbook (7^th Edition):

You, Liang. “Copper Sulfide Solid-State Electrolytic Memory Devices.” 2007. Web. 20 Apr 2021.

Vancouver:

You L. Copper Sulfide Solid-State Electrolytic Memory Devices. [Internet] [Doctoral dissertation]. Case Western Reserve University School of Graduate Studies; 2007. [cited 2021 Apr 20]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1160337918.

Council of Science Editors:

You L. Copper Sulfide Solid-State Electrolytic Memory Devices. [Doctoral Dissertation]. Case Western Reserve University School of Graduate Studies; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1160337918

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Open Access Theses and Dissertations