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Solvothermal preparation and characterization of nanocrystalline Bi2Te3 powder with different morphology

被引：104
作者：
Deng, Y
Zhou, XS
Wei, GD
Liu, J
Nan, CW [1 ]
Zhao, SJ
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Jiamusi Univ, Sch Mat & Engn, Heilongjiang 154000, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2002年 / 63卷 / 11期
基金：
中国国家自然科学基金;
关键词：
chalcogenides; nanostructures; chemical synthesis;
D O I：
10.1016/S0022-3697(02)00261-5
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Bi2Te3-based alloys are currently best-known, technological important thermoelectric materials near room temperature. In this paper, nanocrystalline Bi2Te3 with different morphologies was synthesized by a solvothermal process based on the reaction between BiCl3, Te, and KBH4 in NN-dimethylformamide at 100-180degreesC. KBH4 was used as a reducing agent. The products were characterized by X-ray diffraction and transmission electron microscopy (TEM). The particle morphologies and size are dependent on the reaction temperature and time. A possible formation mechanism is proposed. (C) 2002 Elsevier Science Ltd. All rights reserved.
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收藏
页码：2119 / 2121
页数：3
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