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Degradation of Transparent Conductive Oxides: Mechanistic Insights and Interfacial Engineering

Lemire, Heather M
http://rave.ohiolink.edu/etdc/view?acc_num=case1386325661

Abstract Details

2014, Master of Sciences (Engineering), Case Western Reserve University, Materials Science and Engineering.
Understanding transparent conductive oxide (TCO) degradation is critical to improving lifetimes of thin filmphotovoltaics, which utilize TCOs like aluminum-doped zinc oxide (AZO), indium tin oxide (ITO), and fluorine-doped tin oxide (FTO). Commercial AZO, ITO, and FTO were exposed in accelerated and outdoor exposures in several configurations, utilizing environmental stressors such as irradiance, heat and humidity. Electrical and optical properties and surface energies were measured. Yellowness, haze, water contact angle and resistivity of different materials trended differently with exposure time and type, indicating different degradation mechanisms. Interfacial layers for photovoltaic applications were also studied for AZO and ITO. OPV’s PEDOT:PSS degrades TCO optics only, suggesting decoupled optical and electrical degradation mechanisms. Hazing of AZO by PEDOT:PSS appears photo-sensitive; 5x outdoor exposures demonstrated higher haze than exposures with no light. 3-aminopropyltriethoxysilane was applied to improve TCO stability and exposed to damp heat. 3-aminopropyltriethoxysilane reduces AZO’s resistivity increase and edge effects.
Roger French (Advisor)
Ina Martin (Committee Member)
Alp Sehirlioglu (Committee Member)
Alternative Energy; Energy; Engineering; Environmental Engineering; Environmental Science; Materials Science; Sustainability
transparent conductive oxides; degradation; OPV; silane; interfacial engineering; outdoor exposures; accelerated exposures; mechanistic; lifetime and degradation science;

Recommended Citations

Citations

  • Lemire, H. M. (2014). Degradation of Transparent Conductive Oxides: Mechanistic Insights and Interfacial Engineering [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1386325661

    APA Style (7th edition)

  • Lemire, Heather. Degradation of Transparent Conductive Oxides: Mechanistic Insights and Interfacial Engineering. 2014. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1386325661.

    MLA Style (8th edition)

  • Lemire, Heather. "Degradation of Transparent Conductive Oxides: Mechanistic Insights and Interfacial Engineering." Master's thesis, Case Western Reserve University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1386325661

    Chicago Manual of Style (17th edition)

case1386325661
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© 2013, some rights reserved.Creative Commons License Degradation of Transparent Conductive Oxides: Mechanistic Insights and Interfacial Engineering by Heather M Lemire is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.