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以CuCl2·2H2O,自制的GaCl3和(NH2)2CS为原料,在乙二醇体系中合成了花状结构的CuGaS2纳米晶．产物分别用X射线粉末衍射仪、透射电子显微镜、场发射扫描电子显微镜、高分辩透射电子显微镜和X射线光电子能谱仪进行了表征．实验结果表明,220℃反应24 h得到均匀的花状纳米结构CuGaS2,它是由厚度80-100 nm的片晶组成．同时,通过反应时间的控制,可以清楚的看到由纳米颗粒到纳米球以及花状纳米结构的演变过程．另外,研究了反应温度、反应时间、溶剂等对产物和形貌的影响．此外,对花状结构纳米晶的生长机理进行了初步的探讨．室温荧光光谱表明,随粒径的降低,发光位发生了部分蓝移．
The flower-like CuGaS2 nanocrystals were synthesized from ethylene glycol with CuCl2 · 2H2O, GaCl3 and (NH2) 2CS as raw materials. The products were characterized by X-ray powder diffraction, transmission electron microscopy, field emission scanning electron microscopy, high resolution transmission electron microscopy and X-ray photoelectron spectroscopy. The experimental results show that the uniform flower-like nanostructured CuGaS2 is obtained at 220 ℃ for 24 h, which is composed of platelets with thickness of 80-100 nm. At the same time, the evolution from nanoparticles to nanospheres and flower-like nanostructures can be clearly seen through reaction time control. In addition, the effects of reaction temperature, reaction time and solvent on the product and morphology were studied. In addition, the growth mechanism of flower-like structure nanocrystals is discussed preliminarily. Fluorescence spectra at room temperature showed that with the decrease of the particle size, a partial blue shift occurred in the emission sites.