CsPbX3/Cs4PbX6 core/shell perovskite nanocrystals

Chao Jia; Hui Li; Xianwei Meng; Hongbo Li

doi:10.1039/C8CC02802H

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CsPbX₃/Cs₄PbX₆ core/shell perovskite nanocrystals†

Chao Jia,^a Hui Li,^a Xianwei Meng

^b and Hongbo Li

*^a

Author affiliations

* Corresponding authors

^a Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 10081, China
E-mail: hongbo.li@bit.edu.cn

^b Laboratory of Controllable Preparation and Application of Nanomaterials, CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Abstract

The synthesis of core/shell perovskite nanocrystals was demonstrated for the first time by applying a seeded growth approach. The obtained core/shell nanocrystals were shown to consist of a light-emitting CsPbX₃ core with a narrow band gap and a Cs₄PbX₆ passivating shell with a large band gap (>3.2 eV), and to therefore display an improved photoluminescence quantum yield.

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Supplementary files

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Article information

DOI: https://doi.org/10.1039/C8CC02802H
Article type: Communication
Submitted: 09 Apr 2018
Accepted: 22 May 2018
First published: 23 May 2018

Download Citation

Chem. Commun., 2018,54, 6300-6303

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CsPbX₃/Cs₄PbX₆ core/shell perovskite nanocrystals

C. Jia, H. Li, X. Meng and H. Li, Chem. Commun., 2018, 54, 6300 DOI: 10.1039/C8CC02802H

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Chemical Communications