Nonvolatile chlorinated additives adversely influence CH3NH3PbI3 based planar solar cells

Yani Chen; Yixin Zhao; Ziqi Liang

doi:10.1039/C5TA01198A

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Nonvolatile chlorinated additives adversely influence CH₃NH₃PbI₃ based planar solar cells†

Yani Chen,^a Yixin Zhao^b and Ziqi Liang*^a

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* Corresponding authors

^a Department of Materials Science, Fudan University, Shanghai 200433, China
E-mail: zqliang@fudan.edu.cn

^b College of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract

We demonstrate that nonvolatile CaCl₂ additives can significantly improve the film morphology of CH₃NH₃PbI₃. Unlike those volatile chlorinated additives, a small portion of Cl anions from CaCl₂ seem to enter into the CH₃NH₃PbI₃ crystal, yet most insulating CaCl₂ remains within the perovskite film, which is detrimental to perovskite solar cells.

This article is part of the themed collection: Perovskite Solar Cells

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Article information

DOI: https://doi.org/10.1039/C5TA01198A
Article type: Communication
Submitted: 24 ربيع الثاني 1436
Accepted: 22 جمادى الأولى 1436
First published: 22 جمادى الأولى 1436

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J. Mater. Chem. A, 2015,3, 9137-9140

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Nonvolatile chlorinated additives adversely influence CH₃NH₃PbI₃ based planar solar cells

Y. Chen, Y. Zhao and Z. Liang, J. Mater. Chem. A, 2015, 3, 9137 DOI: 10.1039/C5TA01198A

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Journal of Materials Chemistry A