Effects of ZnO and SiO2 shell thickness on the structure and optical properties of ZnS:Mn2+ nanowires/ZnO quantum dots/SiO2 core/shell nanocomposites

被引：6
|
作者：
Cao, Jian [1 ]
Wang, Bingji [1 ]
Han, Donglai [1 ]
Yang, Shuo [1 ]
Liu, Qianyu [1 ]
Wang, Tingting [1 ]
Niu, Haifeng [1 ]
Yang, Jinghai [1 ]
机构：
[1] Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Siping 136000, Peoples R China
来源：
MATERIALS LETTERS | 2014年 / 135卷
基金：
中国国家自然科学基金;
关键词：
ZnS:Mn2+ nanowires; ZnO quantum dot; Nanocomposites; Luminescence; LOW-TEMPERATURE SYNTHESIS;
D O I：
10.1016/j.matlet.2014.07.148
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnS:Mn2+ nanowires (NWs)/ZnO quantum dots (QDs)/SiO2 nanocomposites were successfully synthesized by Stober method. The results showed that the number of the ZnO QDs dispersed on the surface of the ZnS:Mn2+ NWs was increased as the molar ratio of the QDs to NWs increased from 2:1 to 6:1, the thickness of the SiO2 sheath increased from 13.14 to 14.71 nm as the hydrolysis time of tetraethyl orthosilicate (TEOS) increased from 4 to 7 h. The intensity of the yellow-orange emission reached the highest value when t=4, 5, 6 h, respectively, for the nanocomposites with the molar ratio of the NWs to QDs was 1:2, 1:4 and 1:6. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：71 / 74
页数：4
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