Grinding Synthesis of APbX3 (A = MA, FA, Cs; X = Cl, Br, I) Perovskite Nanocrystals

ACS Applied Materials & Interfaces
Daqin ChenJiasong Zhong

Abstract

Currently, metal halide perovskite nanocrystals have been extensively explored due to their unique optoelectronic properties and wide application prospects. In the present work, a facile grinding method is developed to prepare whole-family APbX3 (A = MA, FA, and Cs; X = Cl, Br, and I) perovskite nanocrystals. This strategy alleviates the harsh synthesis conditions of precursor dissolution, atmosphere protection, and high temperature. Impressively, the as-prepared perovskite nanocrystals are evidenced to have halogen-rich surfaces and yield visible full-spectral emissions with maximal photoluminescence quantum yield up to 92% and excellent stability. Additionally, the grinding method can be extended to synthesize widely concerned Mn2+-doped CsPbCl3 nanocrystals with dual-modal emissions of both excitons and dopants. As a proof-of-concept experiment, the present perovskite nanocrystals are demonstrated to be applicable as blue/green/red color converters in UV-excitable white-light-emitting diodes.

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Citations

Aug 7, 2020·Chemistry : a European Journal·Dmitry TsvetkovAndrey Zuev
Nov 5, 2019·Nature Communications·Tz-Han WeiFa-Kuen Shieh
Feb 18, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Yongqiang JiArshad Saleem Bhatti
May 15, 2021·Journal of Environmental Sciences (China)·Qun WangXiaohong Wu
Jul 29, 2021·Inorganic Chemistry·Jiyu TianFinlay D Morrison

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