Gu, W.; Zeng, Y.; Deng, Y.; Huang, P.; Jin, G.; Liu, F.; Wei, J.; Li, H. Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals. Crystals2023, 13, 864.
Gu, W.; Zeng, Y.; Deng, Y.; Huang, P.; Jin, G.; Liu, F.; Wei, J.; Li, H. Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals. Crystals 2023, 13, 864.
Gu, W.; Zeng, Y.; Deng, Y.; Huang, P.; Jin, G.; Liu, F.; Wei, J.; Li, H. Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals. Crystals2023, 13, 864.
Gu, W.; Zeng, Y.; Deng, Y.; Huang, P.; Jin, G.; Liu, F.; Wei, J.; Li, H. Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals. Crystals 2023, 13, 864.
Abstract
Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route of orthorhombic Cs2CuCl4 NCs with well-defined cubic shape and an average diameter of 24 ± 2.1 nm. The Cs2CuCl4 NCs exhibit bright deep blue photoluminescence, which is attributed to the Cu(II) defects. In addition, passivating the Cs2CuCl4 NCs by Ag+ can effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.
Keywords
Cs2CuCl4 nanocrystals; Ag passivation; photoluminescence quantum yield; stability
Subject
Chemistry and Materials Science, Nanotechnology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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