Ultrabright blue-light-emitting cesium bromide quantum dots for white LEDs

Tianfeng Li; Mengdi Qiao; Xingyi He; Rui Zhu; Xia Ran; Xiaojuan Wang; Yu Jia; Lijun Guo

doi:10.1039/d3cc00792h

Ultrabright blue-light-emitting cesium bromide quantum dots for white LEDs

Chem Commun (Camb). 2023 May 9;59(38):5721-5724. doi: 10.1039/d3cc00792h.

Authors

Tianfeng Li¹, Mengdi Qiao¹, Xingyi He¹, Rui Zhu², Xia Ran³, Xiaojuan Wang³, Yu Jia², Lijun Guo^{1

3}

Affiliations

¹ School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China. juneguo@henu.edu.cn.
² School of Materials Science, Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, China.
³ Academy for Advanced Interdisciplinary Studies, School of Physics and Electronics, Henan University, Kaifeng 475004, China. wangxiaojuan@henu.edu.cn.

PMID: 37092283
DOI: 10.1039/d3cc00792h

Abstract

Novel lead-free non-perovskite blue-emitting cesium bromine (CsBr) QDs have been prepared using a ligand-assisted re-precipitation method. A high photoluminescence quantum yield of over 92.0% makes the CsBr QDs an efficient color-conversion candidate for fabricating white-light-emitting diodes.