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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Preparation of CuIn_(1-x)Ga_xS_2 (x = 0.5) flowers consisting of nanoflakes via a solvothermal method
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Preparation of CuIn_(1-x)Ga_xS_2 (x = 0.5) flowers consisting of nanoflakes via a solvothermal method

机译：溶剂热法制备纳米薄片组成的CuIn_（1-x）Ga_xS_2（x = 0.5）花

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摘要

CuIn_(1-x)Ga_xS_2 (x=0.5) flowers consisting of nanoflakes were successfully prepared by a biomolecule-assisted solvothermal route at 220°C for 10 h, employing copper chloride, gallium chloride, indium chloride and L-cysteine as precursors. The biomolecule L-cysteine acting as sulfur source was found to play a very important role in the formation of the final product. The diameter of the CuIn_(0.5)Ga_(0.5)S_2 flowers was 1 -2 μm, and the thickness of the flakes was about 15 nm. The obtained products were characterized by X-ray diffraction (XRD), energy dispersion spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction spectroscopy (SAED), and UV-vis absorption spectroscopy. The influences of the reaction temperature, reaction time, sulfur source and the molar ratio of Cu-to-L-cysteine (reactants) on the formation of the target compound were investigated. The formation mechanism of the CuIn_(0.5)Ga_(0.5)S2 flowers consisting of flakes was discussed.
机译：以氯化铜，氯化镓，氯化铟和L-半胱氨酸为前驱体，在220℃下通过生物分子辅助溶剂热途径成功制备了由纳米薄片组成的CuIn_（1-x）Ga_xS_2（x = 0.5）花。发现作为硫源的生物分子L-半胱氨酸在最终产物的形成中起着非常重要的作用。 CuIn_（0.5）Ga_（0.5）S_2花的直径为1-2μm，并且薄片的厚度为约15nm。通过X射线衍射（XRD），能量色散谱（EDS），X射线光电子能谱（XPS），场发射扫描电子显微镜（FESEM），透射电子显微镜（TEM）对所得产物进行表征。透射电子显微镜（HRTEM），选择区域电子衍射光谱（SAED）和紫外可见吸收光谱。研究了反应温度，反应时间，硫源以及Cu与L-半胱氨酸（反应物）的摩尔比对目标化合物形成的影响。探讨了片状CuIn_（0.5）Ga_（0.5）S2花的形成机理。

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