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Inverted perovskite solar cells using dimethylacridine-based dopants

Author

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  • Qin Tan

    (Southern University of Science and Technology)

  • Zhaoning Li

    (Southern University of Science and Technology)

  • Guangfu Luo

    (Southern University of Science and Technology)

  • Xusheng Zhang

    (Southern University of Science and Technology)

  • Bo Che

    (University of Science and Technology of China)

  • Guocong Chen

    (Southern University of Science and Technology)

  • Han Gao

    (Southern University of Science and Technology)

  • Dong He

    (Southern University of Science and Technology)

  • Guoqiang Ma

    (Southern University of Science and Technology)

  • Jiafeng Wang

    (Southern University of Science and Technology)

  • Jingwei Xiu

    (Southern University of Science and Technology)

  • Huqiang Yi

    (Southern University of Science and Technology)

  • Tao Chen

    (University of Science and Technology of China)

  • Zhubing He

    (Southern University of Science and Technology)

Abstract

Doping of perovskite semiconductors1 and passivation of their grain boundaries2 remain challenging but essential for advancing high-efficiency perovskite solar cells. Particularly, it is crucial to build perovskite/indium tin oxide (ITO) Schottky contact based inverted devices without predepositing a layer of hole-transport material3–5. Here we report a dimethylacridine-based molecular doping process used to construct a well-matched p-perovskite/ITO contact, along with all-round passivation of grain boundaries, achieving a certified power conversion efficiency (PCE) of 25.39%. The molecules are shown to be extruded from the precursor solution to the grain boundaries and the bottom of the film surface in the chlorobenzene-quenched crystallization process, which we call a molecule-extrusion process. The core coordination complex between the deprotonated phosphonic acid group of the molecule and lead polyiodide of perovskite is responsible for both mechanical absorption and electronic charge transfer, and leads to p-type doping of the perovskite film. We created an efficient device with a PCE of 25.86% (reverse scan) and that maintained 96.6% of initial PCE after 1,000 h of light soaking.

Suggested Citation

  • Qin Tan & Zhaoning Li & Guangfu Luo & Xusheng Zhang & Bo Che & Guocong Chen & Han Gao & Dong He & Guoqiang Ma & Jiafeng Wang & Jingwei Xiu & Huqiang Yi & Tao Chen & Zhubing He, 2023. "Inverted perovskite solar cells using dimethylacridine-based dopants," Nature, Nature, vol. 620(7974), pages 545-551, August.
  • Handle: RePEc:nat:nature:v:620:y:2023:i:7974:d:10.1038_s41586-023-06207-0
    DOI: 10.1038/s41586-023-06207-0
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    Citations

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    Cited by:

    1. Meng-Hsueh Kuo & Neda Neykova & Ivo Stachiv, 2024. "Overview of the Recent Findings in the Perovskite-Type Structures Used for Solar Cells and Hydrogen Storage," Energies, MDPI, vol. 17(18), pages 1-23, September.
    2. Cheng Gong & Haiyun Li & Zhiyuan Xu & Yuheng Li & Huaxin Wang & Qixin Zhuang & Awen Wang & Zhijun Li & Zhihao Guo & Cong Zhang & Baiqian Wang & Xiong Li & Zhigang Zang, 2024. "Efficient and stable inverted perovskite solar cells enabled by homogenized PCBM with enhanced electron transport," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Dongyang Li & Qing Lian & Tao Du & Ruijie Ma & Heng Liu & Qiong Liang & Yu Han & Guojun Mi & Ouwen Peng & Guihua Zhang & Wenbo Peng & Baomin Xu & Xinhui Lu & Kuan Liu & Jun Yin & Zhiwei Ren & Gang Li , 2024. "Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    4. Shuchen Tan & Chongwen Li & Cheng Peng & Wenjian Yan & Hongkai Bu & Haokun Jiang & Fang Yue & Linbao Zhang & Hongtao Gao & Zhongmin Zhou, 2024. "Sustainable thermal regulation improves stability and efficiency in all-perovskite tandem solar cells," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    5. Shaobing Xiong & Fuyu Tian & Feng Wang & Aiping Cao & Zeng Chen & Sheng Jiang & Di Li & Bin Xu & Hongbo Wu & Yefan Zhang & Hongwei Qiao & Zaifei Ma & Jianxin Tang & Haiming Zhu & Yefeng Yao & Xianjie , 2024. "Reducing nonradiative recombination for highly efficient inverted perovskite solar cells via a synergistic bimolecular interface," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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