| 溶剂热法CuInSe2粉体的形貌可控制备与表征 | |
| Synthesis and Characterization of Morphology-Controllable CuInSe2 Powders by Solvothermal Route | |
| 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。 | |
| 关键词: 溶剂热 CuInSe2 形貌 光吸收 机理 | |
| 基金项目: | |
| 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. | |
| Keywords: solvothermal CuInSe2 morphology light absorption mechanism | |
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| 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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