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Microwave-Assisted Synthesis of High-Quality All-Inorganic CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals and the Application in Light Emitting Diode

Abstract

As an emerging material for optoelectronic applications, cesium lead halide (CsPbX3) nanocrystals (NCs) have drown much attention because of their excellent photophysical properties. In this work, for the first time, we report a fast and efficient microwave-assisted strategy for the synthesis of high-quality CsPbX3 NCs with controllable morphologies (nanocube, naoplate and nanorod). The prepared CsPbX3 nanocubes show high PLQY (was calculated to be about 75%) and narrow full width at half maximum emission line (from 9 to 34 nm) covering the full visible range. Plate-like and rod-like CsPbBr3 NCs can also be obtained by tuning the reaction parameters. A feasible kinetics-controlled growth mechanism of such NCs has been proposed and verified. The as-synthesized CsPbBr3 NCs show excellent optical performance as a green light source in a white light emitting diode prototype device. This work not only provides a new synthetic path for the preparation of high-quality CsPbX3 NCs, but also sheds some light on the fundamental study and practical applications of such NCs.

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Publication details

The article was received on 19 Aug 2017, accepted on 09 Sep 2017 and first published on 09 Sep 2017


Article type: Paper
DOI: 10.1039/C7TC03774K
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Microwave-Assisted Synthesis of High-Quality All-Inorganic CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals and the Application in Light Emitting Diode

    Q. Pan, H. Hu, Y. Zou, M. Chen, L. Wu, D. Yang, X. Yuan, J. Fan, B. Sun and Q. Zhang, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC03774K

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