دورية أكاديمية
Development of Pulsed Laser Deposited TiO2, ZnO and AZO Thin UV-Protection Films for Enhanced Perovskite Photostability
| العنوان: | Development of Pulsed Laser Deposited TiO2, ZnO and AZO Thin UV-Protection Films for Enhanced Perovskite Photostability |
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| المؤلفون: | Lochhead, Kate |
| المصدر: | Electronic Thesis and Dissertation Repository |
| بيانات النشر: | Scholarship@Western |
| سنة النشر: | 2023 |
| المجموعة: | The University of Western Ontario: Scholarship@Western |
| مصطلحات موضوعية: | Perovskite solar cells, Degradation, UV light stability, Thin film encapsulation, Pulsed laser deposition, Oxygen vacancies, Semiconductor and Optical Materials |
| الوصف: | Perovskite solar cells are an emerging sustainable energy conversion technology with the potential to provide relief from the global energy crisis. However, the UV-induced degradation of perovskites has been a barrier to commercialization. Thin film encapsulation represents a promising solution for extending device lifetimes. Three materials with suitable bandgaps for blocking UV light are identified: TiO2, ZnO and AZO. Herein, the optical properties of TiO2, ZnO and AZO thin films grown by room-temperature pulsed laser deposition are optimized by varying the oxygen partial pressure during deposition. UV-Vis spectroscopy reveals facile bandgap tuning via the concentration of O2 vacancies. Accelerated UV-aging experiments find that the films which screen the most UV light are also most effective in delaying perovskite degradation. A comparison of TiO2, ZnO and AZO photoprotective coatings concludes that ZnO is most suitable for perovskite solar cell encapsulation since it provides a ∼50% reduction in UV-degradation without significantly compromising visible light transmittance. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://ir.lib.uwo.ca/etd/9150Test; https://ir.lib.uwo.ca/context/etd/article/11954/viewcontent/Kate_thesis_final_revised.pdfTest |
| الإتاحة: | https://ir.lib.uwo.ca/etd/9150Test https://ir.lib.uwo.ca/context/etd/article/11954/viewcontent/Kate_thesis_final_revised.pdfTest |
| حقوق: | http://creativecommons.org/licenses/by-nc-nd/4.0Test/ |
| رقم الانضمام: | edsbas.689AB617 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |