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Regulating surface potential maximizes voltage in all-perovskite tandems

Author

Listed:
  • Hao Chen

    (University of Toronto)

  • Aidan Maxwell

    (University of Toronto)

  • Chongwen Li

    (University of Toronto
    The University of Toledo)

  • Sam Teale

    (University of Toronto)

  • Bin Chen

    (University of Toronto
    Northwestern University)

  • Tong Zhu

    (University of Toronto)

  • Esma Ugur

    (King Abdullah University of Science and Technology)

  • George Harrison

    (King Abdullah University of Science and Technology)

  • Luke Grater

    (University of Toronto)

  • Junke Wang

    (University of Toronto)

  • Zaiwei Wang

    (University of Toronto)

  • Lewei Zeng

    (University of Toronto)

  • So Min Park

    (University of Toronto)

  • Lei Chen

    (The University of Toledo)

  • Peter Serles

    (University of Toronto)

  • Rasha Abbas Awni

    (The University of Toledo)

  • Biwas Subedi

    (The University of Toledo)

  • Xiaopeng Zheng

    (National Renewable Energy Laboratory)

  • Chuanxiao Xiao

    (National Renewable Energy Laboratory)

  • Nikolas J. Podraza

    (The University of Toledo)

  • Tobin Filleter

    (University of Toronto)

  • Cheng Liu

    (Northwestern University
    Northwestern University)

  • Yi Yang

    (Northwestern University
    Northwestern University)

  • Joseph M. Luther

    (National Renewable Energy Laboratory)

  • Stefaan De Wolf

    (King Abdullah University of Science and Technology)

  • Mercouri G. Kanatzidis

    (Northwestern University)

  • Yanfa Yan

    (The University of Toledo)

  • Edward H. Sargent

    (University of Toronto
    Northwestern University
    Northwestern University)

Abstract

The open-circuit voltage (VOC) deficit in perovskite solar cells is greater in wide-bandgap (over 1.7 eV) cells than in perovskites of roughly 1.5 eV (refs. 1,2). Quasi-Fermi-level-splitting measurements show VOC-limiting recombination at the electron-transport-layer contact3–5. This, we find, stems from inhomogeneous surface potential and poor perovskite–electron transport layer energetic alignment. Common monoammonium surface treatments fail to address this; as an alternative, we introduce diammonium molecules to modify perovskite surface states and achieve a more uniform spatial distribution of surface potential. Using 1,3-propane diammonium, quasi-Fermi-level splitting increases by 90 meV, enabling 1.79 eV perovskite solar cells with a certified 1.33 V VOC and over 19% power conversion efficiency (PCE). Incorporating this layer into a monolithic all-perovskite tandem, we report a record VOC of 2.19 V (89% of the detailed balance VOC limit) and over 27% PCE (26.3% certified quasi-steady state). These tandems retained more than 86% of their initial PCE after 500 h of operation.

Suggested Citation

  • Hao Chen & Aidan Maxwell & Chongwen Li & Sam Teale & Bin Chen & Tong Zhu & Esma Ugur & George Harrison & Luke Grater & Junke Wang & Zaiwei Wang & Lewei Zeng & So Min Park & Lei Chen & Peter Serles & R, 2023. "Regulating surface potential maximizes voltage in all-perovskite tandems," Nature, Nature, vol. 613(7945), pages 676-681, January.
  • Handle: RePEc:nat:nature:v:613:y:2023:i:7945:d:10.1038_s41586-022-05541-z
    DOI: 10.1038/s41586-022-05541-z
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    Cited by:

    1. Jin Zhou & Shiqiang Fu & Shun Zhou & Lishuai Huang & Cheng Wang & Hongling Guan & Dexin Pu & Hongsen Cui & Chen Wang & Ti Wang & Weiwei Meng & Guojia Fang & Weijun Ke, 2024. "Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Bo Li & Qi Liu & Jianqiu Gong & Shuai Li & Chunlei Zhang & Danpeng Gao & Zhongwei Chen & Zhen Li & Xin Wu & Dan Zhao & Zexin Yu & Xintong Li & Yan Wang & Haipeng Lu & Xiao Cheng Zeng & Zonglong Zhu, 2024. "Harnessing strong aromatic conjugation in low-dimensional perovskite heterojunctions for high-performance photovoltaic devices," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Yongyan Pan & Jianan Wang & Zhenxing Sun & Jiaqi Zhang & Zheng Zhou & Chenyang Shi & Sanwan Liu & Fumeng Ren & Rui Chen & Yong Cai & Huande Sun & Bin Liu & Zhongyong Zhang & Zhengjing Zhao & Zihe Cai , 2024. "Surface chemical polishing and passivation minimize non-radiative recombination for all-perovskite tandem solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    4. Yao Zhang & Chunyan Li & Haiyan Zhao & Zhongxun Yu & Xiaoan Tang & Jixiang Zhang & Zhenhua Chen & Jianrong Zeng & Peng Zhang & Liyuan Han & Han Chen, 2024. "Synchronized crystallization in tin-lead perovskite solar cells," Nature Communications, Nature, vol. 15(1), pages 1-11, 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.
    6. Qi Han & Jun Wang & Shuangshuang Tian & Shen Hu & Xuefeng Wu & Rongxu Bai & Haibin Zhao & David W. Zhang & Qingqing Sun & Li Ji, 2024. "Inorganic perovskite-based active multifunctional integrated photonic devices," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    7. Jian Xu & Aidan Maxwell & Zhaoning Song & Abdulaziz S. R. Bati & Hao Chen & Chongwen Li & So Min Park & Yanfa Yan & Bin Chen & Edward H. Sargent, 2024. "The dynamic adsorption affinity of ligands is a surrogate for the passivation of surface defects," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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