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Enhancing the performance of perovskite solar cells via interface modification

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Abstract

Interface modification is an effective strategy to improve the performance of perovskite solar cells (PSCs). In this work, edible materials like glycerol and choline chloride were used to modify the surface of hole transport layer (HTL) NiOx. CH3NH3PbI3 (MAPbI3) film fabricated on the modified NiOx has a smoother surface and more uniform grains. It enables an improvement in short-circuit current density (JSC) of PSC from 17.77 ± 0.18 to 20.35 ± 0.36 mA cm−2, leading to an enhancement of power conversion efficiency from 13.37 to 15.25%. The work mechanism of glycerol and choline chloride modification was discussed. Our work provides an efficient and environmentally friendly choice for interface modification.

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Acknowledgements

The Project was funded by NSFC (Grant No. 51603072), and Jiangsu Shuangchuang Innovation Group Project (Grant No. 090300316001).

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Authors and Affiliations

  1. Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, People’s Republic of China

    Qiaoli Niu, Yunkai Deng, Daiqi Cui, Hao Lv, Xiaomeng Duan, Zhi Li, Ze Liu, Wenjin Zeng & Ruidong Xia

  2. Guangdong University of Technology, Panyu, Guangzhou, 510006, People’s Republic of China

    Wanyi Tan & Yong Min

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  1. Qiaoli Niu
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  2. Yunkai Deng
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Correspondence to Wanyi Tan or Yong Min.

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Niu, Q., Deng, Y., Cui, D. et al. Enhancing the performance of perovskite solar cells via interface modification. J Mater Sci 54, 14134–14142 (2019). https://doi.org/10.1007/s10853-019-03898-7

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