All-inorganic Cs2CuX4 (X = Cl, Br, and Br/I) perovskite quantum dots with blue-green luminescence

Pan Yang; Guoning Liu; Badi Liu; Xindi Liu; Yongbing Lou; Jinxi Chen; Yixin Zhao

doi:10.1039/C8CC07118G

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All-inorganic Cs₂CuX₄ (X = Cl, Br, and Br/I) perovskite quantum dots with blue-green luminescence†

Pan Yang,^a Guoning Liu,^a Badi Liu,^a Xindi Liu,^a Yongbing Lou,

*^a Jinxi Chen

*^a and Yixin Zhao

*^b

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Southeast University, Nanjing, China
E-mail: lou@seu.edu.cn, chenjinxi@seu.edu.cn

^b School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
E-mail: yixin.zhao@sjtu.edu.cn

Abstract

Highly photoluminescent all-inorganic copper based perovskite Cs₂CuX₄ (X = Cl, Br, and Br/I) quantum dots (QDs) were facilely synthesized and investigated for the first time. These perovskite QDs exhibited high quantum yield for blue-green light and excellent stability, while the particle size and photoluminescence wavelength could be tuned via the molar ratio of the raw materials.

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Article information

DOI: https://doi.org/10.1039/C8CC07118G
Article type: Communication
Submitted: 02 Sep 2018
Accepted: 21 Sep 2018
First published: 21 Sep 2018

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Chem. Commun., 2018,54, 11638-11641

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All-inorganic Cs₂CuX₄ (X = Cl, Br, and Br/I) perovskite quantum dots with blue-green luminescence

P. Yang, G. Liu, B. Liu, X. Liu, Y. Lou, J. Chen and Y. Zhao, Chem. Commun., 2018, 54, 11638 DOI: 10.1039/C8CC07118G

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Chemical Communications