气候变化领域集成服务门户(CCPortal): Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification

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DOI	10.1016/j.scib.2021.06.022
	Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification
	Deng K.; Chen Q.; Shen Y.; Li L.
发表日期	2021
ISSN	20959273
英文摘要	The stability of perovskite solar cells is an important issue to be addressed for future applications. Perovskite solar cells are vulnerable to exposure to UV light due to promoted chemical reactions. However, preventing UV light from entering solar cells lowers the power conversion efficiency by reducing the photocurrent. The challenge is to improve UV stability without sacrificing efficiency. Here, we demonstrate the reduction of UV light-related negative effects from the perspective of spectral modification. By simultaneously introducing UV–visible downshifting and light trapping, perovskite solar cells can achieve a comparable efficiency of over 21% to that of an unmodified device. The optimized device obtains increased UV stability due to UV–visible downshifting. Different from other strategies, spectral modification externally alters the composition of incident light and improves UV stability without changing the internal device architecture, which is broadly applicable to perovskite solar cells with different structures. The present work may also find applications in other types of solar cells to boost the stability of devices exposed to UV light. © 2021 Science China Press
关键词	Downshifting Light trapping Perovskite solar cells UV stability
英文关键词	Efficiency; Perovskite; Perovskite solar cells; Cell-be; Cell/B.E; Cell/BE; Downshifting; Future applications; Light-trapping; Spectral modifications; UV-light; UV-stability; UV-visible; Stability
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207383
作者单位	School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, China
推荐引用方式 GB/T 7714	Deng K.,Chen Q.,Shen Y.,et al. Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification[J],2021.
APA	Deng K.,Chen Q.,Shen Y.,&Li L..(2021).Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification.Science Bulletin.
MLA	Deng K.,et al."Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification".Science Bulletin (2021).