Fabrication of hollow-sphere films of wurtzite CuInS2 on copper substrate

被引:10
作者
Lei, Shuijin [1 ]
Wang, Chunying [1 ]
Huang, Qiang [2 ]
Liu, Lei [1 ]
Ge, Yang [1 ]
Tang, Qingliu [1 ]
Cheng, Baochang [1 ]
Xiao, Yanhe [1 ]
Zhou, Lang [1 ]
机构
[1] Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Jiangxi, Peoples R China
[2] Nanchang Univ, Sch Electromech Engn, Nanchang 330031, Jiangxi, Peoples R China
基金
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词
Chalcogenides; Nanostructures; Chemical synthesis; Electron microscopy; CU-IN-S; SOLAR-CELLS; NANOCRYSTALS; NANOPARTICLES; PRECURSORS; SYSTEM; SHAPE;
D O I
10.1016/j.matchemphys.2013.08.051
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
As important semiconductors, I-III-VI2 compounds have attracted wide attention, among which the wurtzite structured CuInS2 has been the research focus due to its metastable phase. In this paper, the wurtzite CuInS2 hollow-sphere films have been successfully prepared on copper substrate in a self-designed solvothermal detached system. The films of Cu(OH)(2) one-dimensional nanostructure arrays and thioacetamide were used as the precursors and triethylene glycol was used as the solvent. Experiments showed that the amount of indium trichloride played a determinative role in the final morphology of the products. Meanwhile, the one-dimensional nanostructure arrays and the detached solvothermal system have great influences on the crystal shape as well. Based on the experimental results, a possible formation mechanism for the CuInS2 hollow spheres was also proposed. The UV-Vis absorption spectrum showed a broad absorption over the entire visible light and extending into the near-infrared region and presented the band gap of 1.53 eV for the as-prepared wurtzite CuInS2, which indicates the potential applications in solar cells. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:195 / 202
页数:8
相关论文
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