Cu(In,Ga)Se2 Thin Film Preparation from a Cu(In,Ga) Metallic Alloy and Se Nanoparticles by an Intense Pulsed Light Technique

被引:0
作者
Sanjay R. Dhage
Hak-Sung Kim
H. Thomas Hahn
机构
[1] University of California Los Angeles,Mechanical and Aerospace Engineering Department
[2] University of California Los Angeles,Material Science and Engineering Department, California NanoSystems Institute
[3] International Advanced Research Center for Powder Metallurgy and New Materials (ARCI),Center for Solar Energy Materials
[4] Hanyang University,Department of Mechanical Engineering
来源
Journal of Electronic Materials | 2011年 / 40卷
关键词
CIGS thin film; chalcopyrite; intense pulsed light; solar cells;
D O I
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中图分类号
学科分类号
摘要
The main contribution of this paper is the development of a novel process for the formation of copper indium gallium diselenide (CIGS) films. CIGS films with a thickness of 4 μm and grain size from 0.3 μm to 1 μm were prepared from a Cu(In0.7Ga0.3) (CIG) metallic alloy and Se nanoparticles by the intense pulsed light (IPL) technique. The melting of the CIG and Se nanoparticles and nucleation of CIGS occurred in a very short reaction time of 2 ms. It is believed that the Se diffuses into the CIG lattice to form the CIGS chalcopyrite crystal structure. The tetragonal chalcopyrite crystal structure was confirmed by x-ray powder diffraction (XRD), while the microstructure and composition were determined by field-emission scanning electron microscopy (FESEM), energy-dispersive x-ray spectroscopy (EDAX), and x-ray fluorescence (XRF) spectroscopy.
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页码:122 / 126
页数:4
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