材料科學與工程 材料物理與化學，外文文獻翻譯及原文

Controlled synthesis of wurtzite CuInS2nanocrystals and their side-by-sidenanorod assemblies

纖鋅礦CuInS2納米晶和其并排式納米棒組件的可控合成

Wurtzite CuInS2nanocrystals have been synthesized by direct reaction of copper nitrate, indium nitrateand dodecanethiol. The size and shape of the nanocrystals could be elaborately controlled by varyingthe Cu/In ratio and additional ligands other than dodecanethiol, such as oleylamine and oleic acid.Especially, the nanorods obtained under a Cu/In raw material ratio of 2 : 1 with the assistance of bothdodecanethiol and oleic acid have good uniformity. They could further assemble into large-scalesuperlattices on substrates by solvent evaporation method. On the other hand, the optical propertystudies of the nanocrystals show that the band gap of wurtzite CuInS2is 1.63 eV, which is optimal forsolar cell applications. This report provides valuable insight into the controlled synthesis of ternaryI-III-VI2semiconductors and the assembly process, packing them into oriented films.

摘要
CuInS2納米晶已經可以通過硝酸銅、 硝酸銦、正十二硫醇的直接反應合成，它的尺寸和形狀可以通過改變銅/銦比、額外的配體溶液而達到精確的控制，配體溶液可以用油酰胺、油酸。尤其，在銅/銦比2:1和正十二硫醇與油酸的共同作用下得到的CuInS2納米晶具有良好的均勻性。通過溶劑蒸發(fā)法，可以進一步在襯底組裝成大型超晶格，另一方面，CuInS2光學性質顯示，它的帶隙為1.63ev ，能夠最為理想的被應用到太陽能電池領域。這篇文章提供了CuInS2納米晶的有效合成方法和其組裝過程，可以制成定向薄膜。