CuIn0.7Ga0.3Se2粉末的自蔓延高温合成

Synthesis of CuIn0.7Ga0.3Se2 (CIGS) Powder by SHS

摘要:

以Cu，In，Ga，Se单质为原料用自蔓延高温合成法制备CuIn0.7Ga0.3Se2粉末。通过X射线衍射、光电子能谱、能量散射X射线分析、激光拉曼光谱等分析方法对产物的组成、结构和成分进行表征。结果表明，反应物投料比例，合成气氛压力等因素对合成产物化学计量配比有显著的影响。利用自蔓延高温合成方法可以获得精确化学计量配比、单相黄铜矿结构的CuIn0.7Ga0.3Se2。

Abstract:

CuIn0.7Ga0.3Se2 (CIGS) was synthesized using Cu, In, Ga and Se powders as starting materials by self-propagating high-temperature synthesis method (SHS). The phase and crystallographic structure，chemical composition of the products were characterized by X-ray Diffraction, X-ray Photoelectron Spectroscopy, Energy Dispersive X-ray spectrometer and Laser Raman Spectroscopy. The results show different factors in this process such as reactant ratio, atmosphere pressure etc. obviously influence the stoichiometric composition of the products. An accurate stoichiometric, single-phase chalcopyrite-type CIGS can be prepared by SHS.