高等学校化学学报 ›› 2014, Vol. 35 ›› Issue (3): 461.doi: 10.7503/cjcu20130953

• 研究论文: 无机化学 • 上一篇    下一篇

还原石墨烯-CuInS2复合材料的制备及光伏性能

李涛(), 夏友付   

  1. 亳州师范高等专科学校理化系, 亳州236800
  • 收稿日期:2013-09-26 出版日期:2014-03-10 发布日期:2014-03-10
  • 作者简介:联系人简介: 李 涛, 男, 讲师, 主要从事纳米复合材料的制备及性能研究. E-mail: litaolove_2007@126.com

Preparation and Photovoltaic Performance of Reduced Graphene Oxide-CuInS2 Composite

LI Tao*(), XIA Youfu   

  1. Department of Sciences, Bozhou Teacher’s College, Bozhou 236800, China
  • Received:2013-09-26 Online:2014-03-10 Published:2014-03-10
  • Contact: LI Tao E-mail:litaolove_2007@126.com

摘要:

利用溶剂热法制备了新型的还原石墨烯-CuInS2(rGO-CuInS2)复合材料. 通过X射线衍射(XRD)、 Raman光谱、 紫外-可见吸收光谱(UV-Vis)、 荧光光谱(PL)、 透射电子显微镜(TEM)及高分辨透射电子显微镜(HRTEM)等对所得材料的结构进行了表征. 结果表明, rGO-CuInS2复合材料中CuInS2的尺寸为3~5 nm. 将不同组成的rGO-CuInS2复合材料应用于杂化太阳能电池, 结果发现, 与还原石墨烯(rGO)的能量转换效率相比, rGO-CuInS2复合材料的能量转换效率得到明显提高, 通过对不同组成的rGO-CuInS2复合材料制备的太阳能电池器件进行分析, 得到性能达到最高效率(1.10%)时复合物的最佳组成.

关键词: 石墨烯, CuInS2, 光伏性能, 溶剂热合成

Abstract:

A new type of reduced graphene oxide-CuInS2(rGO-CuInS2) composite was successfully synthesized via solvothermal method. The structure of composite was characterized by X-ray diffraction(XRD), Raman, UV-Vis(UV-Vis), photoluminescence(PL) spectra, transmission electron microscopy(TEM) and high-resolution transmission electron microscopy(HRTEM). The results show that CuInS2 quantum dots, with a size of 3—5 nm, disperses uniformly on the surface of graphene. In addition, the growth mechanism of the composite was also investigated. And, the rGO-CuInS2 composites with different rGO/CuInS2 mass ratio were applied in hybrid photovoltaic device. Compared with the power conversion efficiency(η) of the device based on reduced graphene oxide(rGO), the device based on rGO-CuInS2 composites exhibit higher performance with the highest η of 1.10% when the composite mass ratio is 0.5:1.

Key words: Graphene, CuInS2, Photovoltaic performance, Solvothermal synthesis

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