One-pot reprecipitation strategy to synthesize CsPbX3/Pb3(PO4)2 composite nanocrystals

Jun Liu; Qixuan Zhong; Shuhua Chen; Wenhao Guan; Yinghua Qiu; Di Yang; Muhan Cao; Qiao Zhang

doi:10.1039/D0TC04935B

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One-pot reprecipitation strategy to synthesize CsPbX₃/Pb₃(PO₄)₂ composite nanocrystals†

Jun Liu,^a Qixuan Zhong,^a Shuhua Chen,^a Wenhao Guan,^a Yinghua Qiu,^a Di Yang,^a Muhan Cao

*^a and Qiao Zhang

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* Corresponding authors

^a Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren’ai Road, Suzhou, Jiangsu, People's Republic of China
E-mail: mhcao@suda.edu.cn

Abstract

In this work, we report a simple one-pot reprecipitation method of CsPbX₃/Pb₃(PO₄)₂ composite nanocrystals (NCs), which have significantly improved photophysical properties and stability. The as-obtained CsPbBr₃/Pb₃(PO₄)₂ NCs display bright green emission with a high PLQY of 95%. In addition, the product has an outstanding stability toward moisture and polar solvents, superior to that of pristine CsPbBr₃ NCs. This work not only provides a facile method for preparing lead halide perovskite NCs with high quality, but also sheds some light on the potential of inorganic salts as passivators.

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Article information

DOI: https://doi.org/10.1039/D0TC04935B
Article type: Communication
Submitted: 17 Oct 2020
Accepted: 28 Dec 2020
First published: 28 Dec 2020

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J. Mater. Chem. C, 2021,9, 466-471

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One-pot reprecipitation strategy to synthesize CsPbX₃/Pb₃(PO₄)₂ composite nanocrystals

J. Liu, Q. Zhong, S. Chen, W. Guan, Y. Qiu, D. Yang, M. Cao and Q. Zhang, J. Mater. Chem. C, 2021, 9, 466 DOI: 10.1039/D0TC04935B

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Journal of Materials Chemistry C