Polar CsPbBr3-based Dion–Jacobson hybrid for promising UV photodetection

Dongying Fu; Shichao Wu; Jianli Xin; Xinyuan Zhang; Gaoyi Han; Xian-Ming Zhang

doi:10.1039/D0CC05679K

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Polar CsPbBr₃-based Dion–Jacobson hybrid for promising UV photodetection†

Dongying Fu,

*^ab Shichao Wu,^ab Jianli Xin,^ab Xinyuan Zhang,^c Gaoyi Han

^b and Xian-Ming Zhang*^ad

Author affiliations

* Corresponding authors

^a Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi 030006, China
E-mail: dyfu@sxu.edu.cn, xmzhang@sxu.edu.cn

^b Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China

^c State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, P. R. China

^d School of Chemistry and Materials Science, Shanxi Normal University, Linfen, Shanxi 041001, China

Abstract

An unprecedented CsPbBr₃-based polar Dion–Jacobson type bilayered hybrid, (2meptH₂)CsPb₂Br₇ (1, where 2mept = 2-methyl-1,5-diaminopentane), has been reported. Polarization could benefit the charge transport to induce low N_trap. 1 exhibits a large on/off ratio (∼10³), fast response time (∼200 μs) and high photodetectivity (∼10⁹ Jones) for promising UV photodetection.

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Article information

DOI: https://doi.org/10.1039/D0CC05679K
Article type: Communication
Submitted: 10 Sep 2020
Accepted: 19 Oct 2020
First published: 19 Oct 2020

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Chem. Commun., 2020,56, 14381-14384

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Polar CsPbBr₃-based Dion–Jacobson hybrid for promising UV photodetection

D. Fu, S. Wu, J. Xin, X. Zhang, G. Han and X. Zhang, Chem. Commun., 2020, 56, 14381 DOI: 10.1039/D0CC05679K

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