An efficient planar-heterojunction solar cell based on wide-bandgap CH3NH3PbI2.1Br0.9 perovskite film for tandem cell application

Weidong Zhu; Chunxiong Bao; Faming Li; Xiaoxin Zhou; Jie Yang; Tao Yu; Zhigang Zou

doi:10.1039/C5CC07673K

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An efficient planar-heterojunction solar cell based on wide-bandgap CH₃NH₃PbI_2.1Br_0.9 perovskite film for tandem cell application†

Weidong Zhu,^a Chunxiong Bao,^a Faming Li,^a Xiaoxin Zhou,^a Jie Yang,^a Tao Yu*^abc and Zhigang Zou^abc

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* Corresponding authors

^a National Laboratory of Solid State Microstructures & Eco-Materials and Renewable Energy Research Center (ERERC) at the Department of Physics, Nanjing University, Nanjing 210093, P. R. China
E-mail: yutao@nju.edu.cn

^b Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China

^c Jiangsu Key Laboratory for Nano Technology, Nanjing 210093, P. R. China

Abstract

A dense and homogenous flat wide-bandgap (1.75 eV) CH₃NH₃PbI_2.1Br_0.9 perovskite film was prepared via a facile halide exchange route. The planar-heterojunction solar cell shows an optimal power conversion efficiency of 12.67% with negligible current hysteresis due to the film's large grains and vertically oriented grain boundaries.

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Article information

DOI: https://doi.org/10.1039/C5CC07673K
Article type: Communication
Submitted: 14 Sep 2015
Accepted: 15 Oct 2015
First published: 15 Oct 2015

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Chem. Commun., 2016,52, 304-307

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An efficient planar-heterojunction solar cell based on wide-bandgap CH₃NH₃PbI_2.1Br_0.9 perovskite film for tandem cell application

W. Zhu, C. Bao, F. Li, X. Zhou, J. Yang, T. Yu and Z. Zou, Chem. Commun., 2016, 52, 304 DOI: 10.1039/C5CC07673K

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