Bright Luminous and Stable CsPbBr3@PS Microspheres Prepared via Facile Anti-solvent Method using CTAB as Double Modifier

被引：10

作者：

Zhou, Juan ^{[1
]}

Lin, Husitu ^{[1
]}

Yu, Yingchun ^{[1
]}

Zuo, Shengli ^{[1
]}

Li, Baoshan ^{[1
]}

Liu, Jianjun ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2020年 / 26卷 / 46期

基金：

中国国家自然科学基金;

关键词：

CTAB; luminescence; perovskite phases; PS microspheres; surface ligand; PEROVSKITE QUANTUM DOTS; EFFICIENT; NANOCRYSTALS; STABILITY; COMPOSITE;

D O I：

10.1002/chem.202000835

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The past decade has witnessed the increasing interest in cesium lead halide perovskite quantum dots (PQDs) for their excellent optical properties with higher photoluminescence efficiency and tunable emission wavelengths widely applied in white LED, photovoltaic devices, etc. Here we report the preparation of CsPbBr(3)PQDs by a facile anti-solvent method using conventional quaternary ammonium bromide (CTAB) as a double modifier-both proper alkyl group protection and bromine source donator. The as-formed PQDs are well-monodispersed cubes with a size of 10-15 nm and high photoluminescence quantum yield (PLQY) of up to 43 %. To enhance the stability of PQDs, CsPbBr3@PS microspheres were formed by electrospraying process. The microspheres not only show excellent luminous properties, but exhibit much higher stability against air and UV light irradiation due to the super hydrophobic property of polystyrene.

引用

页码：10528 / 10533

页数：6