Colloidal synthesis of lead-free all-inorganic Cs3Sb2BrxI9-x nanocrystals

被引：15

作者：

Gan, Weijiang ^{[1
]}

Lou, Sunqi ^{[1
]}

Wang, Jing ^{[1
]}

机构：

[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Bioinorgan & Synthet Chem, Sch Mat Sci & Engn,Minist Educ, Guangzhou 510275, Guangdong, Peoples R China

来源：

JOURNAL OF INFORMATION DISPLAY | 2019年 / 20卷 / 04期

基金：

国家重点研发计划;

关键词：

Cs3Sb2Br9; perovskite variant; nanocrystals; high stability; LIGHT-EMITTING-DIODES; QUANTUM DOTS; PEROVSKITE; LUMINESCENT; RB;

D O I：

10.1080/15980316.2019.1664651

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Environment-friendly lead-free perovskite nanocrystals (NCs) are highly desirable in terms of optoelectronic applications. Reported herein is the synthesis of perovskite-related Cs3Sb2Br9 NCs through a simple hot-injection approach. The morphologies and optical properties of NCs were controlled and optimized by varying the reaction temperature, time, and volume of surface ligands. Meanwhile, the Cs3Sb2Br9 NCs showed bandgap emission in the blue region centered at 470 nm, and 63 nm full width at half maximum (FWHM). In addition, the Cs3Sb2Br9 NCs displayed high stability when immersed in a polar solvent like ethanol. It was also found that the bandgaps of the Cs3Sb2BrxI9-x NCs could be adjusted by regulating the composition of halogen.

引用

页码：201 / 207

页数：7

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