Controllable hydrothermal synthesis of Cu2S nanowires on the copper substrate

被引：34
|
作者：
Yu, Xuelian [1 ,2 ]
An, Xiaoqiang [3 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
[2] TEDA, Motorola China Elect Ltd, Tianjin 300457, Peoples R China
[3] Chinese Peoples Armed Police Acad, Dept Fire Protect Engn, Langfang 065000, Hebei, Peoples R China
来源：
MATERIALS LETTERS | 2010年 / 64卷 / 03期
基金：
中国博士后科学基金;
关键词：
Crystal growth; Nanomaterials; Copper sulfide; Hydrothermal reaction; Optical property; NANOSTRUCTURES; SULFIDE; NANOCRYSTALS; NANODISKS; FILMS;
D O I：
10.1016/j.matlet.2009.10.051
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a simple solution-based method has been applied to fabricate metal chalcogenide nanostructures. Abundant Cu2S nanowires on Cu substrates are successfully prepared through the in-situ hydrothermal reaction between sulfur powder and Cu foil. It is observed that the addition of hydrazine and cetyltrimethylammonium bromide plays an important role in the growth of Cu2S nanowires. A rolling-up mechanism of metal chalcogenide film is used to illustrate the growth of these nanostructures. UV-vis spectrum of Cu2S nanowires reveals obvious absorption below the wavelength of 900 nm. The calculated band gap of Cu2S nanowires (1.5 eV) shows obvious blue shift because of the quantum size effect. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：252 / 254
页数：3
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