Fabrication of CsPbBr3 films with high quality using a simple method

Inorganic perovskite CsPbBr3 is a material used for fabricating highly efficient and stable perovskite solar cells. In this work, a two-step infiltration-spinning method is proposed to obtain CsPbBr3 films with pure phase. Phase transformations between CsPb2Br5, CsPbBr3 and Cs4PbBr6 are investigated...

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Published in:Journal of physics. D, Applied physics Applied physics, 2021-04, Vol.54 (15)
Main Authors: Yang, Xingming, Li, Mengmeng, Jiang, Junjie, Ma, Ligang, Tang, Wenchao, Xu, Cuiping, Cai, H L, Zhang, F M, Wu, X S
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Language:English
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antisolvent
high temperature post-treatment
inorganic perovskite CsPbBr
two-step method
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container_issue 15
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container_title Journal of physics. D, Applied physics
container_volume 54
creator Yang, Xingming
Li, Mengmeng
Jiang, Junjie
Ma, Ligang
Tang, Wenchao
Xu, Cuiping
Cai, H L
Zhang, F M
Wu, X S
description Inorganic perovskite CsPbBr3 is a material used for fabricating highly efficient and stable perovskite solar cells. In this work, a two-step infiltration-spinning method is proposed to obtain CsPbBr3 films with pure phase. Phase transformations between CsPb2Br5, CsPbBr3 and Cs4PbBr6 are investigated by controlling the contact time between the CsBr solution and the PbBr2 substrate. CsPbBr3 films with large grain sizes are obtained after high temperature post-treatment. The CsPbBr3-based solar cells show a high efficiency (approximately 7%) with a short-circuit current density of 6.68 mA cm−2, an open-circuit voltage of 1.47 V and a fill factor of 70.9% under standard solar illumination.
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subjects antisolvent
high temperature post-treatment
inorganic perovskite CsPbBr
two-step method
title Fabrication of CsPbBr3 films with high quality using a simple method
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