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Perovskite Single-Crystal Solar Cells: Going Forward
ACS Energy Letters ( IF 19.3 ) Pub Date : 2021-01-25 , DOI: 10.1021/acsenergylett.0c02573
Bekir Turedi 1 , Vishal Yeddu 2 , Xiaopeng Zheng 1 , Do Young Kim 2 , Osman M. Bakr 1 , Makhsud I. Saidaminov
Affiliation  

Most efficient perovskite solar cells are based on polycrystalline thin films; however, substantial structural disorder and defective grain boundaries place a limit on their performance. Perovskite single crystals are free of grain boundaries, leading to significantly low defect densities, and thus hold promise for high-efficiency photovoltaics. However, the surfaces of perovskite single crystals present a major performance bottleneck because they possess a higher density of traps than the bulk. Hence, it is crucial to understand and control the surface trap population to fully exploit perovskite single crystals. This Perspective highlights the importance of surface-trap management in unleashing the potential of perovskite single-crystal photovoltaics and discusses strategies to take this technology beyond the proof-of-concept stage.

中文翻译:

钙钛矿单晶太阳能电池:向前发展

最有效的钙钛矿太阳能电池是基于多晶薄膜。然而,大量的结构紊乱和缺陷的晶界限制了它们的性能。钙钛矿单晶没有晶界,导致缺陷密度明显降低,因此有望用于高效光伏。但是,钙钛矿单晶的表面存在主要的性能瓶颈,因为它们比阱中具有更高的陷阱密度。因此,了解和控制表面陷阱阱以充分利用钙钛矿单晶至关重要。本《观点》强调了表面陷阱管理在释放钙钛矿单晶光伏技术潜力方面的重要性,并讨论了将该技术超越概念验证阶段的策略。
更新日期:2021-02-12
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