DOI: 10.1016/j.scib.2021.06.022
论文题名: Improving UV stability of perovskite solar cells without sacrificing efficiency through light trapping regulated spectral modification
作者: Deng K. ; Chen Q. ; Shen Y. ; Li L.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170231
Appears in Collections: 气候变化与战略
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作者单位: School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, China
Recommended Citation:
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]. Science Bulletin,2021-01-01