Synthesis and Properties of Water-Soluble Silica-Coated ZnSe/ZnS Semiconductor Quantum Dots

被引：0
|
作者：
Xiuxiu Chen
Futian Liu
Qinghui Jiang
Li Sun
Qun Wang
机构：
[1] University of Jinan,School of Material Science and Engineering
来源：
Journal of Inorganic and Organometallic Polymers and Materials | 2012年 / 22卷
关键词：
Quantum dots; Multicore; Luminescence; Silica-coatings;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Silica encapsulated ZnSe/ZnS quantum dots (QDs) are prepared via a sol–gel method by hydrolyzing tetraethyl orthosilicate (TEOS) on the surface of the QDs. The photoluminescence (PL) intensity of ZnS coated ZnSe QDs is more than three times that of ZnSe QDs. By partial interchange of the capping ligand from thioglycolic acid (TGA) to 3-mercaptopropyltri-methoxysilane (MPS) on the QDs, initial PL efficiency of the QDs in water was retained. The average size and morphology of the multicore-shell structured ZnSe/ZnS@SiO2 can be controlled by varying MPS and TEOS concentration.
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页码：6 / 11
页数：5
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