Inorganic Sn–X complex ligands capped CuInS2 nanocrystals with high electron mobility
Inorganic Sn–X complex ligands capped CuInS2 nanocrystals with high electron mobility
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DOI：
10.1007/s11051-014-2802-7
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发表时间：
2014-12
影响因子：
2.5
通讯作者：
Jinjie Li;Huaibin Shen;Changhua Zhou;Ning Li;Hongzhe Wang;L. Li
中科院分区：
文献类型：
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作者：
Jinjie Li;Huaibin Shen;Changhua Zhou;Ning Li;Hongzhe Wang;L. Li
报道了一种在有机相中合成尺寸可控的三角形CuInS 2（CIS）半导体纳米晶的简便方法，然后在环境友好的溶剂中，通过（NH 4）4Sn 2S 6无机配体与有机化合物的交换反应，合成了分子金属硫族化合物包覆的CIS纳米晶.通过紫外可见光谱、傅立叶变换红外光谱、透射电子显微镜、X射线衍射、热重分析、X射线光电子能谱和动态光散射等方法对CIS纳米碳的性质进行了表征。在清洁的ITO玻璃衬底上旋涂CuInS 2NCs（配体交换前后）薄膜，通过电流-电压特性测试其电荷输运特性。我们观察到CIS纳米碳表面的配体已经被成功地交换，并且（NH_4）_4Sn_2S_6-CIS纳米碳膜的电学透明性比有机封端的CIS纳米碳膜有明显的提高。
We report a facile method for the synthesis of size-controlled triangular CuInS2(CIS) semiconductor nanocrystals (NCs) in the organic phase, and then, molecular metal chalcogenide complexes capped CIS NCs can be synthesized by exchanging original organic compounds with (NH4)4Sn2S6inorganic ligands in environmentally benign solvent. The properties of CIS NCs (coated by both organic and inorganic ligands) were characterized by UV–Vis spectroscopy, fourier transform infrared, transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, and dynamic light scattering. CuInS2NCs (before and after ligand exchange) films were spin coated on cleaned ITO glass substrates, and the charge transport properties were detected by current-voltage characteristic. We observed that the ligands on the surface of CIS NCs have been exchanged successfully, and the electrical transparency of (NH4)4Sn2S6-CIS NCs films was obviously increased than CIS NCs with organic capping ligands.