| 溶剂热法CuInSe2粉体的形貌可控制备与表征 |
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| 引用本文： | 段学臣,蒋 波,程亚娟,孙巧珍,朱 磊,刘扬林.溶剂热法CuInSe2粉体的形貌可控制备与表征[J].无机化学学报,2011,27(2):293-297. |
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| 作者姓名： | 段学臣 蒋 波 程亚娟 孙巧珍 朱 磊 刘扬林 |
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| 作者单位： | 1. 中南大学材料科学与工程学院,长沙410083;有色金属材料科学与工程教育部重点实验室,长沙410083
2. 中南大学材料科学与工程学院,长沙,410083 |
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| 基金项目： | 湖南省科技计划项目(No.2009FJ3097); 湖南省自然科学基金重点项目(No.08JJ3104)资助 |
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| 摘 要： | 采用溶剂热法,通过改变反应温度和初始nCu/nIn比制备了一系列CuInSe2粉体。粉体的物相结构、形貌、光吸收性能分别用X射线衍射仪(XRD)、场发射扫描电镜(FESEM)、透射电镜(TEM)、紫外-可见分光光度计(UV-Vis)进行了表征。结果表明:180℃反应即可形成纯黄铜矿型CuInSe2粉体;随着反应温度的升高,粉体形貌有"片-片簇-球簇"的演变规律,其光吸收性能也随之增强,出现"红移"现象;初始nCu/nIn比能有效调控片簇的致密度。同时探讨了粉体不同形貌的形成机理。
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| 关 键 词： | 溶剂热 CuInSe2 形貌 光吸收 机理 |
Synthesis and Characterization of Morphology-Controllable CuInSe2 Powders by Solvothermal Route |
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| DUAN Xue-Chen,JIANG Bo,CHENG Ya-Juan,SUN Qiao-Zhen,ZHU Lei and LIU Yang-Lin.Synthesis and Characterization of Morphology-Controllable CuInSe2 Powders by Solvothermal Route[J].Chinese Journal of Inorganic Chemistry,2011,27(2):293-297. |
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| Authors: | DUAN Xue-Chen JIANG Bo CHENG Ya-Juan SUN Qiao-Zhen ZHU Lei and LIU Yang-Lin |
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| Institution: | School of Materials Science and Engineering, Central South University, Changsha 410083, China; The Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education of China, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China; The Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education of China, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China; The Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education of China, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China; The Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education of China, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China and School of Materials Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | A series of CuInSe2 powders were prepared respectively by changing the reaction temperatures and initial Cu/In molar ratios,via a facile solvothermal route.The phase,morphology and light absorption performance were characterized by XRD,FESEM,TEM and UV-Vis,respectively.It is found that the chalcopyrite CuInSe2 can be successfully fabricated at 180 ℃.While increasing the reaction temperature,the morphologies of as-prepared powders evolve gradually from flake to 2-Dimension(2D) hexagonal flake cluster,then to 2D hexagonal sphere cluster.And their light absorption properties can also be resluting enhanced with a red shift of the absorption edge.Further studies reveal that the initial Cu/In molar ratios can effectively control the density of flake cluster.Additionally,a possible growth mechanism of the novel morphologies is also preliminarily discussed in this paper. |
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| Keywords: | solvothermal CuInSe2 morphology light absorption mechanism |
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