| Autor: |
Tingting Shi, Dewei Zhao, Feng Hong, Yanfa Yan, Wan-Jian Yin, Weijun Ke, Jie Ge, Alex Cimaroli, Y. Yue |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
2015 22nd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD). |
| DOI: |
10.1109/am-fpd.2015.7173196 |
| Popis: |
In this paper, we present theoretical and experimental studies of two representative earth-abundant, thin-film solar cell materials: Cu 2 ZnSnS 4 and CH 3 NH 3 PbI 3 . Using first-principles density-functional theory, we show that both Cu 2 ZnSnS 4 and CH 3 NH 3 PbI 3 exhibit electronic and optical properties that are suitable for solar cell applications. However, the defect physics are rather different in these two earth-abundant solar cell materials: the dominant defects produce deep gap states in Cu 2 ZnSnS 4 but only shallow states in CH 3 NH 3 PbI 3 , indicating that CH 3 NH 3 PbI 3 is a more promising candidate for achieving high efficiency solar cells. Through the synthesis and characterization of Cu 2 ZnSnS 4 and CH 3 NH 3 PbI 3 -based thin-film solar cells, we show that CH 3 NH 3 PbI 3 -based thin-film solar cells exhibit significantly higher performance than Cu 2 ZnSnS 4 -based solar cells. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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