Optical responses of ZnSe quantum dots in silica gel glasses

被引：26
作者：
Wang, YP
Yao, X
Wang, MQ [1 ]
Kong, FT
He, JF
机构：
[1] Xian Jiaotong Univ, Elect Mat Res Lab, Xian 710049, Peoples R China
[2] Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Technol, Xian 710068, Peoples R China
来源：
JOURNAL OF CRYSTAL GROWTH | 2004年 / 268卷 / 3-4期
关键词：
optical properties; quantum dots; ZnSe; semiconducting II-VI materials;
D O I：
10.1016/j.jcrysgro.2004.04.095
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The characteristic features of the absorption and photoluminescence spectra of ZnSe quantum dots (QDs) inside a silica matrix derived from a sol-gel method were studied at room temperature. Compared with the bulk materials, the absorption edges of ZnSe QDs in silica gel glass were shifted to higher energies and the spectra exhibited the discrete excitonic features due to the quantum confinement effects. Besides the band-edge emission, photoluminescence at ultraviolet excitation also showed the emissions related to the higher excitonic states. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：580 / 584
页数：5
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