Optical Properties of CdSe Quantum Dot-Doped Borosilicate Glass

被引：0
|
作者：
Xu Z. [1 ]
Cheng C. [1 ]
机构：
[1] Institute of Intelligent Optoelectronic Technology, Zhejiang University of Technology, Hangzhou
来源：
Cheng, Cheng (chengch@zjut.edu.cn) | 2018年 / Chinese Ceramic Society卷 / 46期
关键词：
Borosilicate glass; Cadmium selenide quantum dot; Crystallization; Glass network structure; Photoluminescence lifetime;
D O I：
10.14062/j.issn.0454-5648.2018.11.06
中图分类号：
学科分类号：
摘要：
Borosilicate glasses doped with CdSe quantum dots (QDs) were prepared by a conventional melt-quenching process and subsequent heat treatment, using CdO and ZnSe as precursors of CdSe QDs. Based on the result by transmission electron microscopy (TEM), CdSe QDs are hexagonal crystals. The result of photoluminescence (PL) spectra shows that CdSe QDs exhibit intrinsic luminescence and defect related luminescence in a visible band. The intensity of defect related to luminescence decreases, while the intensity of intrinsic luminescence of quantum dots increases with increasing heat-treatment temperature. The effect of glass network structure on the crystallization of CdSe QDs was investigated. The result shows that the two-dimensional (2D) network structure and the mobility of Cd2+ and Se2- increase with increasing B2O3 concentration, which is conducive to the crystallization of QDs and the passivation of surface defect. The tunable PL emission of CdSe QDs-doped borosilicate glass could have a potential application as an optical gain material in the visible band. © 2018, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1529 / 1534
页数：5
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