Issue 46, 2023

Enhanced performance of BiI3-incorporated CsPbBr3 solar cells

Abstract

CsPbBr3 all-inorganic perovskite solar cells (PSCs) have been extensively investigated due to their remarkable stability. However, their limited film quality and wide bandgap result in a low photoelectric conversion efficiency (PCE). In this study, BiI3 was incorporated into CsPbBr3 films to synergistically enhance light absorption and film quality. It was found that the partial substitution of Pb2+ and Br with Bi3+ and I in CsPbBr3 improved film quality, enhanced light absorption, and facilitated charge transfer and extraction. The device incorporating BiI3-incorporated CsPbBr3 as a light absorbing layer achieved an efficiency of 9.54%, exhibiting a significant enhancement of 19.4% compared to the undoped device. This work provides a new incorporating strategy that collaboratively improves light absorption and film quality.

Graphical abstract: Enhanced performance of BiI3-incorporated CsPbBr3 solar cells

Supplementary files

Article information

Article type
Paper
Submitted
18 Sep 2023
Accepted
18 Oct 2023
First published
08 Nov 2023

Dalton Trans., 2023,52, 17308-17314

Enhanced performance of BiI3-incorporated CsPbBr3 solar cells

Y. He, Z. Li, M. Liu, S. Liu, J. Fu, Y. Zhang, Q. Li, Y. Tong and Z. Zheng, Dalton Trans., 2023, 52, 17308 DOI: 10.1039/D3DT03055E

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