Abstract The properties of colloidal nanoparticles are the key parameters in the fabrication of inexpensive solar cells based on the solution methods. In this study, Different nanostructures of CuInS2 (CIS) were successfully synthesized by a heating-up facile polyol-based method in which, polyols including diethylene glycol (DEG), ethylene glycol (EG), and glycerol (Gly) were chosen as both the solvent and the reductant. It is found that not only the indium precursor type but also the polyol solvent are greatly effective on the size, morphology and crystal phase of this sulfide ternary composition. Briefly, the heating-up synthesis using In(acac)3 in DEG and Gly media, created nano-sized particles that arranged in a wurtzite crystalline structure. Resulted CIS particles from other indium salts are not suitable for making nanoparticle-based inks, since the micron-sized agglomerated particles are obtained which lack proper dispersion behavior for making inks.

中文翻译：

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通过基于多元醇的加热合成方法的 CuInS2 纳米粒子的形态和相控生长

摘要 胶体纳米粒子的性质是基于溶液法制备廉价太阳能电池的关键参数。在这项研究中，CuInS2 (CIS) 的不同纳米结构是通过一种基于加热简便的多元醇的方法成功合成的，其中选择了包括二甘醇 (DEG)、乙二醇 (EG) 和甘油 (Gly) 在内的多元醇作为两者溶剂和还原剂。发现不仅铟前体类型而且多元醇溶剂对这种硫化物三元组合物的尺寸、形态和晶相都非常有效。简而言之，在 DEG 和 Gly 介质中使用 In(acac)3 进行加热合成，产生了排列在纤锌矿晶体结构中的纳米级颗粒。来自其他铟盐的 CIS 颗粒不适用于制造基于纳米颗粒的油墨，