Acta Chimica Sinica ›› 2019, Vol. 77 ›› Issue (10): 964-976.DOI: 10.6023/A19040143 Previous Articles     Next Articles



杨英abc, 朱从潭abc, 林飞宇abc, 陈甜abc, 潘德群abc, 郭学益abc*()   

  1. a 中南大学 冶金与环境学院 长沙 410083
    b 有色金属资源循环利用湖南省重点实验室 长沙 410083
    c 有色金属资源循环利用湖南省工程研究中心 长沙 410083
  • 投稿日期:2019-04-24 发布日期:2019-07-04
  • 通讯作者: 郭学益
  • 作者简介:杨英, 副教授, 武汉大学博士毕业. 长期从事材料物理化学及新能源材料与器件的科研工作, 对固态高分子电解质以及固态染料敏化太阳能电池、量子点太阳能电池及钙钛矿太阳能电池有夯实的理论和实践基础. 于2013~2014年间在美国怀俄明大学完成博士后研究工作. 现工作于中南大学冶金与环境学院. 主要研究方向: 新能源材料与器件|郭学益, 教授, 1995于中南大学获得博士学位. 1997年完成博士后研究工作, 1999~2000 年在日本佐贺大学理工学部机能物质化学科担任研究员, 2000~2003 年在日本东京大学国际产学共同研究中心担任客员教授. 现工作于中南大学冶金与环境学院. 主要研究方向: 资源循环利用及环境材料.
  • 基金资助:

Research Progress of Inverted Perovskite Solar Cells

Yang, Yingabc, Zhu, Congtanabc, Lin, Feiyuabc, Chen, Tianabc, Pan, Dequnabc, Guo, Xueyiabc*()   

  1. a Central South University, School of Metallurgy and Environment, Changsha 410083
    b Hunan Key Laboratory of Nonferrous Metal Resources Recycling, Changsha 410083
    c Hunan Engineering Research Center of Nonferrous Metal Resources Recycling, Changsha 410083
  • Received:2019-04-24 Published:2019-07-04
  • Contact: Guo, Xueyi
  • Supported by:
    Project supported by the National Natural Science Foundation of China(61774169);Scientific Research Foundation for the Returned overseas Chinese Scholar, Natural Science Foundation of Hunan(2016JJ3140);Undergraduate student of Central South University(ZY20180866);Undergraduate student of Central South University(202321009)

Since the introduction of perovskite solar cells in 2009, perovskite solar cells have developed rapidly due to their low-cost and high theoretical photoelectric conversion efficiency. Among them, the inverted structure of perovskite solar cells has received more and more attention due to its good stability and low hysteresis effect. Since its inception in 2013, its photoelectric conversion efficiency has rapidly increased from the initial 3.9% to 21.5%. However, compared with the traditional upright structure perovskite solar cells, there is still a gap in the photoelectric conversion efficiency of inverted perovskite solar cells. Due to the nature of the organic materials used, perovskites are more severely affected by moisture in the air environment. They are heavily dependent on nitrogen protection during device manufacturing. In the future, if perovskite solar cells are put into production, the fully enclosed waterless environment will obviously increase the production costs. At the same time, the development of large-area preparation technology is still a difficult problem to be solved. The development of inverted perovskite solar cells, the selection of carrier transport materials, interface optimization, and the development of flexible devices are systematically reviewed in this paper. For example, PEDOT:PSS was doped by GeO2 and DMSO, and PEDOT:PSS was modified by MoO3 and GO to improve its work function, acidity and hygroscopicity. A NiOx dense layer is usually doped with Mg 2+, Li + and Cs 4+ to increase its conductivity, which can be prepared by different methods such as magnetron sputtering and sol-gel method. The PCBM interface is modified by C60, BCP, LiF etc., to enhance its ohmic contact with the metal counter electrode. And the PCBM is doped by graphene, CoSe, SnO2 etc., to reduce the charge recombination caused by the interfacial resistance and the defects of the perovskite film. This paper would provide a way to obtain a high efficiency inverted perovskite solar cells by structure and material optimization. And it also give insights into the general rules for preparing large area and flexible devices.

Key words: inverted perovskite solar cell, working mechanism, carrier transport material, interface optimization, flexible device