无机材料学报2018，Vol.33Issue(3)：279-283,5.DOI:10.15541/jim20170140
CuInS2/ZnS核壳结构量子点的水相制备与性能研究
Preparation and Property of CuInS2/ZnS Core-shell Quantum Dots in Aqueous Phase
摘要
Abstract
Owing to the absence of Cd, Pb, Te and other toxic elements, and the widely tunable fluorescence emission spectra from visible to near infrared light, CuInS2quantum dots (QDs), as a new type of I-III-VI semiconductor mate-rials, have been applied in biological detection and analysis imaging. In this study a fast and low temperature method was proposed to synthesize CuInS2and its ZnS core-shell structure QDs with low toxicity raw materials. The ZnS outer layer suppresses the surface defects to improve the luminescence properties of CuInS2QDs, and further reduces biological toxicity. CuInS2QDs exhibited an obvious emission peak at 530 nm when the molar ratio of Cu:In was 1:1. With the increase of In content, the luminescence peak presents a gradual redshift. After coated with ZnS shell, the luminous intensity of QDs obviously increased and the emission peak red shifted. Further more, when the molar ratio of Cu:Zn was 1:1 and the reflux time was 45 min, the luminescent properties of the synthesized CuInS2/ZnS QDs were optimized. This synthesis method takes the advantages of energy saving, high production efficiency, and excellent environmental friendship, showing wide application potential.关键词
CuInS2/CuInS2/ZnS/核壳结构/水相制备Key words
CuInS2/CuInS2/ZnS/core-shell structure/aqueous phase分类
化学化工引用本文复制引用
周蓓莹,陈东,刘佳乐,江莞,罗维,王连军..CuInS2/ZnS核壳结构量子点的水相制备与性能研究[J].无机材料学报,2018,33(3):279-283,5.基金项目
国家自然科学基金(51272042)National Natural Science Foundation of China(51272042) （51272042）
