The effect of KI on the formation of Tl2E (E = S, Se) nanorods via solvothermal route

被引:18
作者
Ni, YB [1 ]
Shao, MW [1 ]
Wu, ZC [1 ]
Gao, F [1 ]
Wei, XW [1 ]
机构
[1] Anhui Noormal Univ, Coll Chem & Mat Sci, Wuhan 241000, Anhui Prov, Peoples R China
基金
中国国家自然科学基金;
关键词
nanostructures; crystal growth;
D O I
10.1016/j.ssc.2004.02.022
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Tl2E (E = S or Se) nanorods were synthesized via solvothermal route with the addition of KI. The products were characterized with X-ray powder diffraction patterns and transmission electron microscope images. Their optical properties were studied by UV-vis transmittance and photoluminescence spectrum. The band gap of direct forbidden transitions was found larger than that of bulk materials, because of the blue shift caused by nanometer-scale crystalline particles due to quantum confinement effects. A possible growth mechanism is proposed. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:297 / 300
页数:4
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