| 胶体Cu2CdSnS4纳米晶的合成与其性质研究 |
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| 引用本文： | 刘玉峰,葛美英,罗海瀚,孙艳,吴杰,戴宁.胶体Cu2CdSnS4纳米晶的合成与其性质研究[J].红外与毫米波学报,2012,31(1):1-4. |
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| 作者姓名： | 刘玉峰 葛美英 罗海瀚 孙艳 吴杰 戴宁 |
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| 作者单位： | 中国科学院上海技术物理研究所红外物理国家重点实验室,上海,200083 |
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| 基金项目： | National Basic Research Program of China，STCSM，the Knowledge Innovation Program of CAS |
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| 摘 要： | 用简易的溶液化学方法合成了胶体Cu2CdSnS4纳米晶.透射电子显微镜(TEM),扫描电子显微镜(SEM),能谱(EDS),X射线衍射(XRD),X射线光电子谱(XPS)和UV-vis-NIR吸收光谱测试表明Cu2CdSnS4胶体纳米晶具有均一的尺寸分布和良好的结晶性，并具有四面体结构.纳米晶中Cu/Cd/Sn/S的化学计量比约为2.07:0.75:1.26:3.92，Cu、Cd、Sn和S四种元素的化学态分别为+1、+2、+4和-2价，与Cu2CdSnS4分子式中的化学态一致.通过外推法估算Cu2CdSnS4纳米晶的禁带宽度为~1.3 eV.
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| 关 键 词： | 胶体纳米晶 Cu2CdSnS4 光伏材料 太阳电池 |
| 收稿时间： | 3/8/2011 12:00:00 AM |
| 修稿时间： | 4/7/2011 12:00:00 AM |
Synthesis and properties of colloidal Cu2CdSnS4 nanocrystals |
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| LIU Yu-Feng,GE Mei-Ying,LUO Hai-Han,SUN Yan,WU Jie and DAI Ning.Synthesis and properties of colloidal Cu2CdSnS4 nanocrystals[J].Journal of Infrared and Millimeter Waves,2012,31(1):1-4. |
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| Authors: | LIU Yu-Feng GE Mei-Ying LUO Hai-Han SUN Yan WU Jie and DAI Ning |
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| Institution: | *(National Laboratory for Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China) |
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| Abstract: | Colloidal Cu2CdSnS4 nanocrystals were synthesized by a facile solution chemistry method. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis-NIR absorbance spectroscopy measurements indicated that the Cu2CdSnS4 colloidal nanocrystals have uniform size-distribution and good crystalline quality with a tetrahedral coordinated structure. The stoichiometric ratio Cu/Cd/Sn/S is about 2.07:0.75:1.26:3.92 in Cu2CdSnS4 nanocrystals, and the chemical states of Cu, Cd, Sn and S elements are of +1, +2, +4 and -2, which correspond with the states in the molecular formula of Cu2CdSnS4. The band gap of Cu2CdSnS4 nanocrystals is estimated to be ~1.3 eV by extrapolating method. |
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| Keywords: | colloidal nanocrystal Cu2CdSnS4 photovoltaic materials solar cell |
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