A dual function-enabled novel zwitterion to stabilize a Pb–I framework and passivate defects for highly efficient inverted planar perovskite solar cells

Deng Wang; Lei Huang; Qiyin Chen; Luyao Hu; Feng Zeng; Xianyong Zhou; Luozheng Zhang; Chang Liu; Xingzhu Wang; Lei Yan; Baomin Xu

doi:10.1039/D0CC02613A

A dual function-enabled novel zwitterion to stabilize a Pb–I framework and passivate defects for highly efficient inverted planar perovskite solar cells†

Deng Wang,‡^a Lei Huang,‡^a Qiyin Chen,‡^b Luyao Hu,^a Feng Zeng,^a Xianyong Zhou,^a Luozheng Zhang,^ac Chang Liu,

^ac Xingzhu Wang,*^abc Lei Yan*^b and Baomin Xu

*^ac

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* Corresponding authors

^a Department of Materials Science & Engineering and SUSTech Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, Guangdong Province 518055, China
E-mail: xz_wang@hotmail.com, xubm@sustech.edu.cn

^b Xiangtan University, College of Chemistry, Xiangtan, Hunan Province 411105, China
E-mail: yanlei@xtu.edu.cn

^c Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen, Guangdong Province 518055, China

Abstract

A novel zwitterion named bethanechol chloride (BTCC) was introduced to simultaneously stabilize a Pb–I framework and passivate defects for efficient inverted perovskite solar cells. The BTCC-assisted device yielded an elevated power conversion efficiency of 20.45% with an open-circuit voltage of 1.14 V.

Chemical Communications

A dual function-enabled novel zwitterion to stabilize a Pb–I framework and passivate defects for highly efficient inverted planar perovskite solar cells†

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A dual function-enabled novel zwitterion to stabilize a Pb–I framework and passivate defects for highly efficient inverted planar perovskite solar cells

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