Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals

Wanying Gu; Yicheng Zeng; Yuan Deng; Pan Huang; Geyu Jin; Fangze Liu; Jing Wei; Hongbo Li

doi:10.3390/cryst13060864

Colloidal Synthesis and Optical Properties of Cs₂CuCl₄ Nanocrystals

Wanying Gu, Yicheng Zeng, Yuan Deng, Pan Huang, Geyu Jin, Fangze Liu, Jing Wei, Hongbo Li^*

^*此作品的通讯作者

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route for orthorhombic Cs₂CuCl₄ NCs with a well-defined cubic shape and an average diameter of 24 ± 2.1 nm. The Cs₂CuCl₄ NCs exhibited bright, deep blue photoluminescence, which was attributed to the Cu(II) defects. In addition, passivating the Cs₂CuCl₄ NCs by Ag⁺ could effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.

源语言	英语
文章编号	864
期刊	Crystals
卷	13
期	6
DOI	https://doi.org/10.3390/cryst13060864
出版状态	已出版 - 6月 2023

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title = "Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals",

abstract = "Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route for orthorhombic Cs2CuCl4 NCs with a well-defined cubic shape and an average diameter of 24 ± 2.1 nm. The Cs2CuCl4 NCs exhibited bright, deep blue photoluminescence, which was attributed to the Cu(II) defects. In addition, passivating the Cs2CuCl4 NCs by Ag+ could effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.",

keywords = "Ag passivation, CsCuCl nanocrystals, photoluminescence quantum yield, stability",

author = "Wanying Gu and Yicheng Zeng and Yuan Deng and Pan Huang and Geyu Jin and Fangze Liu and Jing Wei and Hongbo Li",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = jun,

doi = "10.3390/cryst13060864",

language = "English",

volume = "13",

journal = "Crystals",

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TY - JOUR

T1 - Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals

AU - Gu, Wanying

AU - Zeng, Yicheng

AU - Deng, Yuan

AU - Huang, Pan

AU - Jin, Geyu

AU - Liu, Fangze

AU - Wei, Jing

AU - Li, Hongbo

PY - 2023/6

Y1 - 2023/6

N2 - Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route for orthorhombic Cs2CuCl4 NCs with a well-defined cubic shape and an average diameter of 24 ± 2.1 nm. The Cs2CuCl4 NCs exhibited bright, deep blue photoluminescence, which was attributed to the Cu(II) defects. In addition, passivating the Cs2CuCl4 NCs by Ag+ could effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.

AB - Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route for orthorhombic Cs2CuCl4 NCs with a well-defined cubic shape and an average diameter of 24 ± 2.1 nm. The Cs2CuCl4 NCs exhibited bright, deep blue photoluminescence, which was attributed to the Cu(II) defects. In addition, passivating the Cs2CuCl4 NCs by Ag+ could effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.

KW - Ag passivation

KW - CsCuCl nanocrystals

KW - photoluminescence quantum yield

KW - stability

UR - http://www.scopus.com/inward/record.url?scp=85163891575&partnerID=8YFLogxK

U2 - 10.3390/cryst13060864

DO - 10.3390/cryst13060864

M3 - Article

AN - SCOPUS:85163891575

SN - 2073-4352

VL - 13

JO - Crystals

JF - Crystals

IS - 6

M1 - 864

ER -

Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals

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Colloidal Synthesis and Optical Properties of Cs₂CuCl₄ Nanocrystals