Na Diffusion and Device Performance of AgBr Treated CuGaSe2 Thin Films
Conference
·
· 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC)
- Colorado School of Mines, Golden, CO (United States)
- Université de Nantes (France)
Previous work demonstrated that uniform CuGaSe2 (CGS) thin films with large grains could be grown using a short AgBr vapor treatment during growth. Here, devices made with this treated CGS showed better performance compared to devices made with standard material. Here, it is shown that AgBr treated CGS device performance worsens over time and is attributed to the suppression of Na diffusion. A NaF post-deposition treatment is shown to effectively introduce Na into the AgBr treated CGS film and prevent device degradation.
- Research Organization:
- Colorado School of Mines, Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; National Science Foundation (NSF)
- DOE Contract Number:
- EE0007551; 1726898
- OSTI ID:
- 1991321
- Journal Information:
- 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), Conference: 2022 IEEE 49. Photovoltaics Specialists Conference (PVSC), Philadelphia, PA (United States), 5-10 Jun 2022
- Country of Publication:
- United States
- Language:
- English
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