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Monolithic all-perovskite tandem solar cells with 24.8% efficiency exploiting comproportionation to suppress Sn(ii) oxidation in precursor ink

Author

Listed:
  • Renxing Lin

    (Nanjing University)

  • Ke Xiao

    (Nanjing University)

  • Zhengyuan Qin

    (Nanjing University)

  • Qiaolei Han

    (Nanjing University)

  • Chunfeng Zhang

    (Nanjing University)

  • Mingyang Wei

    (University of Toronto)

  • Makhsud I. Saidaminov

    (University of Toronto)

  • Yuan Gao

    (Nanjing University)

  • Jun Xu

    (Nanjing University)

  • Min Xiao

    (Nanjing University
    Nanjing University)

  • Aidong Li

    (Nanjing University)

  • Jia Zhu

    (Nanjing University)

  • Edward H. Sargent

    (University of Toronto)

  • Hairen Tan

    (Nanjing University)

Abstract

Combining wide-bandgap and narrow-bandgap perovskites to construct monolithic all-perovskite tandem solar cells offers avenues for continued increases in photovoltaic (PV) power conversion efficiencies (PCEs). However, actual efficiencies today are diminished by the subpar performance of narrow-bandgap subcells. Here we report a strategy to reduce Sn vacancies in mixed Pb–Sn narrow-bandgap perovskites that use metallic tin to reduce the Sn4+ (an oxidation product of Sn2+) to Sn2+ via a comproportionation reaction. We increase, thereby, the charge-carrier diffusion length in narrow-bandgap perovskites to 3 μm for the best materials. We obtain a PCE of 21.1% for 1.22-eV narrow-bandgap solar cells. We fabricate monolithic all-perovskite tandem cells with certified PCEs of 24.8% for small-area devices (0.049 cm2) and of 22.1% for large-area devices (1.05 cm2). The tandem cells retain 90% of their performance following 463 h of operation at the maximum power point under full 1-sun illumination.

Suggested Citation

  • Renxing Lin & Ke Xiao & Zhengyuan Qin & Qiaolei Han & Chunfeng Zhang & Mingyang Wei & Makhsud I. Saidaminov & Yuan Gao & Jun Xu & Min Xiao & Aidong Li & Jia Zhu & Edward H. Sargent & Hairen Tan, 2019. "Monolithic all-perovskite tandem solar cells with 24.8% efficiency exploiting comproportionation to suppress Sn(ii) oxidation in precursor ink," Nature Energy, Nature, vol. 4(10), pages 864-873, October.
    • Handle: RePEc:nat:natene:v:4:y:2019:i:10:d:10.1038_s41560-019-0466-3
    DOI: 10.1038/s41560-019-0466-3
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    Citations

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    Cited by:

    1. Yingxiao Fan & Yu Wu & Yang Xu & Wenhui Li & Huawei Zhou & Xianxi Zhang, 2022. "Situation and Perspectives on Tin-Based Perovskite Solar Cells," Sustainability, MDPI, vol. 14(24), pages 1-11, December.
    2. Yurui Wang & Renxing Lin & Xiaoyu Wang & Chenshuaiyu Liu & Yameen Ahmed & Zilong Huang & Zhibin Zhang & Hongjiang Li & Mei Zhang & Yuan Gao & Haowen Luo & Pu Wu & Han Gao & Xuntian Zheng & Manya Li & , 2023. "Oxidation-resistant all-perovskite tandem solar cells in substrate configuration," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Lung-Chien Chen & Ching-Ho Tien & Yang-Cheng Jhou & Wei-Cheng Lin, 2020. "Co-Solvent Controllable Engineering of MA 0.5 FA 0.5 Pb 0.8 Sn 0.2 I 3 Lead–Tin Mixed Perovskites for Inverted Perovskite Solar Cells with Improved Stability," Energies, MDPI, vol. 13(10), pages 1-12, May.
    4. Bahram Abdollahi Nejand & David B. Ritzer & Hang Hu & Fabian Schackmar & Somayeh Moghadamzadeh & Thomas Feeney & Roja Singh & Felix Laufer & Raphael Schmager & Raheleh Azmi & Milian Kaiser & Tobias Ab, 2022. "Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency," Nature Energy, Nature, vol. 7(7), pages 620-630, July.
    5. Min Xu & Jinjun Qu & Mai Li, 2022. "National Policies, Recent Research Hotspots, and Application of Sustainable Energy: Case of China, USA, and European Countries," Sustainability, MDPI, vol. 14(16), pages 1-30, August.
    6. 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.
    7. Khan, Firoz & Rezgui, Béchir Dridi & Khan, Mohd Taukeer & Al-Sulaiman, Fahad, 2022. "Perovskite-based tandem solar cells: Device architecture, stability, and economic perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    8. Nour El Islam Boukortt & Claudia Triolo & Saveria Santangelo & Salvatore Patanè, 2023. "All-Perovskite Tandem Solar Cells: From Certified 25% and Beyond," Energies, MDPI, vol. 16(8), pages 1-24, April.
    9. Muneeza Ahmad & Nadia Shahzad & Muhammad Ali Tariq & Abdul Sattar & Diego Pugliese, 2021. "Investigating the Sequential Deposition Route for Mixed Cation Mixed Halide Wide Bandgap Perovskite Absorber Layer," Energies, MDPI, vol. 14(24), pages 1-10, December.

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