Aqueous-synthesis of CuInS2 core and CuInS2/ZnS core/shell quantum dots and their optical properties

被引：28

作者：

Jia, Licong ^{[1
]}

Wang, Yongbo ^{[1
]}

Nie, Qiqi ^{[1
]}

Liu, Bei ^{[1
]}

Liu, Enzhou ^{[1
,2
,3
]}

Hu, Xiaoyun ^{[2
]}

Fan, Jun ^{[1
]}

机构：

[1] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China

[2] Northwest Univ, Sch Phys, Xian 710069, Peoples R China

[3] Northwest Univ, Inst Modern Phys, Xian 710069, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 200卷

基金：

中国博士后科学基金; 中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

CuInS2 quantum dots; Optical materials and properties; Aqueous-phase synthesis; Tunable emission; Spectroscopy; GRAM-SCALE SYNTHESIS; NANOCRYSTALS; CDTE; GAP;

D O I：

10.1016/j.matlet.2017.04.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The water-soluble CuInS2 quantum dots (CIS QDs) have been successfully synthesized by a one-pot aqueous-phase synthesis method using indium chloride and copper chloride as reactants. The type-I structure CIS/ZnS core/shell QDs were synthesized in situ for surface passivation, which led to a dramatic enhancement of fluorescence intensity. The CIS/ZnS QDs exhibited a tunable emission in the range of 500-680 nm by changing the ratio of Cu:In without the variation of size. And the corresponding fluorescent color changed from green to red. The QDs with uniform diameter could be assigned to a typical chalcopyrite structure according to XRD analysis. The as-prepared CIS/ZnS QDs have a good potential to be applied in biomedical fluorescence label and probes due to their low toxicity and excellent optical features. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：27 / 30

页数：4