Composition-dependent optical properties of ZnxCd1-xS synthesized by precipitable-hydrothermal process

被引：34
作者：
Shi, Jiaying [1 ]
Yan, Hongjian [1 ]
Wang, Xiuli [1 ]
Feng, Zhaochi [1 ]
Lei, Zhibin [1 ]
Li, Can [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2008年 / 146卷 / 5-6期
基金：
中国国家自然科学基金;
关键词：
semiconductors; chemical synthesis; optical properties; luminescence;
D O I：
10.1016/j.ssc.2008.02.016
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
High-quality Zn(x)Cd(1-x)S nanocrystals have been synthesized by mild and facile precipitable-hydrothermal processes using stable, less toxic inorganic salts Cd(Ac)(2), Zn(AC)(2) and Na(2)S as the starting materials. The composition-dependence optical properties of Zn(x)Cd(1-x)S are studied by UV-visible absorption, Raman and photoluminescence spectroscopy. The near band edge luminescence is observed for Zn(x)Cd(1-x)S nanocrystals with relatively narrow full width at half-maximum besides the deep level luminescence of Zn(x)Cd(1-x)S nanocrystals. The linear-dependence of Raman frequency on the composition x indicates the optical phonons of Zn(x)Cd(1-x)S exhibit the one-mode behavior. These Zn(x)Cd(1-x)S nanocrystals with composition-dependent optical properties synthesized by this convenient, cost-effective and easily controllable approach have potential applications in solar cell, photocatalysis, and optoelectric devices, etc. (C) 2008 Published by Elsevier Ltd.
引用
收藏
页码：249 / 252
页数：4
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