Improved stability of β-CsPbI3 inorganic perovskite using π-conjugated bifunctional surface capped organic cations for high performance photovoltaics

Jie Zhang; Jinchao Liu; Aidong Tan; Jinhua Piao; Zhiyong Fu

doi:10.1039/D0CC05386D

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Improved stability of β-CsPbI₃ inorganic perovskite using π-conjugated bifunctional surface capped organic cations for high performance photovoltaics†

Jie Zhang,

^ab Jinchao Liu,^c Aidong Tan,^a Jinhua Piao^d and Zhiyong Fu

*^a

Author affiliations

* Corresponding authors

^a The Key Lab of Fuel Cell Technology of Guangdong Province, Guangdong, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
E-mail: zyfu@scut.edu.cn
Fax: +86-20-8711-2965

^b State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, China

^c Analytical and Testing Center, South China University of Technology, Guangzhou 510641, China

^d School of Light Industry and Food, South China University of Technology, Guangzhou, China

Abstract

Multiple-ring naphthalenediammonium is employed for the first time to overcome the intrinsic instability of β-CsPbI₃ perovskite via anchoring the ammonium groups occupying A-site vacancies. It improves charge transport and moisture stability giving out a champion power conversion efficiency of 16.69% for an excellent inorganic perovskite solar cell.

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Article information

DOI: https://doi.org/10.1039/D0CC05386D
Article type: Communication
Submitted: 07 Aug 2020
Accepted: 08 Oct 2020
First published: 09 Oct 2020

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Chem. Commun., 2020,56, 13816-13819

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Improved stability of β-CsPbI₃ inorganic perovskite using π-conjugated bifunctional surface capped organic cations for high performance photovoltaics

J. Zhang, J. Liu, A. Tan, J. Piao and Z. Fu, Chem. Commun., 2020, 56, 13816 DOI: 10.1039/D0CC05386D

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