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Journal of Materials Science
Published in: Journal of Materials Science 24/2018

13-08-2018 | Energy materials

Alleviating hysteresis and improving efficiency of MA1−yFAyPbI3−xBrx perovskite solar cells by controlling the halide composition

Authors: Hang Dong, Jiajie Mo, Shangzheng Pang, Dazheng Chen, Weidong Zhu, He Xi, Jingjing Chang, Jincheng Zhang, Chunfu Zhang, Yue Hao

Published in: Journal of Materials Science | Issue 24/2018

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Abstract

Due to their great potential for application in the future of photovoltaics, perovskite solar cells (PSCs) have attracted much attention recently. Changing the composition in perovskites is important for improving the performance of PSCs. In this work, PSCs with mixed MA/FA and Br/I components are fabricated. By changing the cation/anion composition, the MA0.7FA0.3Pb(I0.72Br0.18)3 PSC shows the negligible I–V hysteresis and the enhanced power conversion efficiency. And the statistics result also shows that devices with proper halide composition have a smaller discreteness in the device performance. We demonstrate that the halide ratio is essential for the formation of high-quality perovskite film with longer radiative carrier recombination lifetime, uniform crystal size, and better surface morphology. It is shown that the halide composition in the mixed PSCs could greatly affect the I–V hysteresis and power conversion efficiency (PCE). A proper Br ratio is important to help the device to alleviate the hysteresis and enhance PCE.
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Appendix
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Metadata
Title
Alleviating hysteresis and improving efficiency of MA1−yFAyPbI3−xBrx perovskite solar cells by controlling the halide composition
Authors
Hang Dong
Jiajie Mo
Shangzheng Pang
Dazheng Chen
Weidong Zhu
He Xi
Jingjing Chang
Jincheng Zhang
Chunfu Zhang
Yue Hao
Publication date
13-08-2018
Publisher
Springer US
Published in
Journal of Materials Science / Issue 24/2018
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2780-8

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