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Methylammonium-free, high-efficiency, and stable all-perovskite tandem solar cells enabled by multifunctional rubidium acetate

Author

Listed:
  • Xufeng Liao

    (Wuhan University of Technology)

  • Xuefei Jia

    (Wuhan University of Technology)

  • Weisheng Li

    (Wuhan University of Technology)

  • Xiting Lang

    (Chinese Academy of Sciences)

  • Jianhua Zhang

    (Wuhan University of Technology)

  • Xinyu Zhao

    (Wuhan University of Technology)

  • Yitong Ji

    (Wuhan University of Technology)

  • Qingguo Du

    (Wuhan University of Technology)

  • Chun-Hsiao Kuan

    (and Institute of Molecular Science National Yang Ming Chiao Tung University 1001 Ta-Hseuh Rd)

  • Zhiwei Ren

    (The Hong Kong Polytechnic University)

  • Wenchao Huang

    (Wuhan University of Technology)

  • Yang Bai

    (Shenzhen University of Advanced Technology)

  • Kaicheng Zhang

    (Martensstrasse 7)

  • Chuanxiao Xiao

    (Chinese Academy of Sciences)

  • Qianqian Lin

    (Wuhan University)

  • Yi-Bing Cheng

    (Wuhan University of Technology
    Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory)

  • Jinhui Tong

    (Wuhan University of Technology)

Abstract

All-perovskite tandem solar cells (APTSCs) offer the potential to surpass the Shockley-Queisser limit of single-junction solar cells at low cost. However, high-performance APTSCs contain unstable methylammonium (MA) cation in the tin-lead (Sn-Pb) narrow bandgap subcells. Currently, MA-free Sn-Pb perovskite solar cells (PSCs) show lower performance compared with their MA-containing counterparts. This is due to the high trap density associated with Sn2+ oxidation, which is exacerbated by the rapid crystallization of MA-free Sn-containing perovskite. Here, a multifunctional additive rubidium acetate (RbAC) is proposed to passivate Sn-Pb perovskite. We find that RbAC can suppress Sn2+ oxidation, alleviate microstrain, and improve the crystallinity of the MA-free Sn-Pb perovskite. Consequently, the resultant Sn-Pb PSCs achieve a power conversion efficiency (PCE) of 23.02%, with an open circuit voltage (Voc) of 0.897 V, and a filling factor (FF) of 80.64%, and more importantly the stability of the device is significantly improved. When further integrated with a 1.79-electron volt MA-free wide-bandgap PSC, a 29.33% (certified 28.11%) efficient MA-free APTSCs with a high Voc of 2.22 volts is achieved.

Suggested Citation

  • Xufeng Liao & Xuefei Jia & Weisheng Li & Xiting Lang & Jianhua Zhang & Xinyu Zhao & Yitong Ji & Qingguo Du & Chun-Hsiao Kuan & Zhiwei Ren & Wenchao Huang & Yang Bai & Kaicheng Zhang & Chuanxiao Xiao &, 2025. "Methylammonium-free, high-efficiency, and stable all-perovskite tandem solar cells enabled by multifunctional rubidium acetate," Nature Communications, Nature, vol. 16(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56549-8
    DOI: 10.1038/s41467-025-56549-8
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    as
    1. Chongwen Li & Zhaoning Song & Cong Chen & Chuanxiao Xiao & Biwas Subedi & Steven P. Harvey & Niraj Shrestha & Kamala Khanal Subedi & Lei Chen & Dachang Liu & You Li & Yong-Wah Kim & Chun-sheng Jiang &, 2020. "Low-bandgap mixed tin–lead iodide perovskites with reduced methylammonium for simultaneous enhancement of solar cell efficiency and stability," Nature Energy, Nature, vol. 5(10), pages 768-776, October.
    2. Jingwei Zhu & Yi Luo & Rui He & Cong Chen & Yang Wang & Jincheng Luo & Zongjin Yi & Jarla Thiesbrummel & Changlei Wang & Felix Lang & Huagui Lai & Yuliang Xu & Juncheng Wang & Zhihao Zhang & Wenqing L, 2023. "A donor–acceptor-type hole-selective contact reducing non-radiative recombination losses in both subcells towards efficient all-perovskite tandems," Nature Energy, Nature, vol. 8(7), pages 714-724, July.
    3. Shun Zhou & Shiqiang Fu & Chen Wang & Weiwei Meng & Jin Zhou & Yuanrong Zou & Qingxian Lin & Lishuai Huang & Wenjun Zhang & Guojun Zeng & Dexin Pu & Hongling Guan & Cheng Wang & Kailian Dong & Hongsen, 2023. "Aspartate all-in-one doping strategy enables efficient all-perovskite tandems," Nature, Nature, vol. 624(7990), pages 69-73, December.
    4. Qi Jiang & Jinhui Tong & Yeming Xian & Ross A. Kerner & Sean P. Dunfield & Chuanxiao Xiao & Rebecca A. Scheidt & Darius Kuciauskas & Xiaoming Wang & Matthew P. Hautzinger & Robert Tirawat & Matthew C., 2022. "Surface reaction for efficient and stable inverted perovskite solar cells," Nature, Nature, vol. 611(7935), pages 278-283, November.
    5. 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.
    6. Jinhui Tong & Qi Jiang & Andrew J. Ferguson & Axel F. Palmstrom & Xiaoming Wang & Ji Hao & Sean P. Dunfield & Amy E. Louks & Steven P. Harvey & Chongwen Li & Haipeng Lu & Ryan M. France & Samuel A. Jo, 2022. "Carrier control in Sn–Pb perovskites via 2D cation engineering for all-perovskite tandem solar cells with improved efficiency and stability," Nature Energy, Nature, vol. 7(7), pages 642-651, July.
    7. Renxing Lin & Jian Xu & Mingyang Wei & Yurui Wang & Zhengyuan Qin & Zhou Liu & Jinlong Wu & Ke Xiao & Bin Chen & So Min Park & Gang Chen & Harindi R. Atapattu & Kenneth R. Graham & Jun Xu & Jia Zhu & , 2022. "All-perovskite tandem solar cells with improved grain surface passivation," Nature, Nature, vol. 603(7899), pages 73-78, March.
    8. Rui He & Wanhai Wang & Zongjin Yi & Felix Lang & Cong Chen & Jincheng Luo & Jingwei Zhu & Jarla Thiesbrummel & Sahil Shah & Kun Wei & Yi Luo & Changlei Wang & Huagui Lai & Hao Huang & Jie Zhou & Bings, 2023. "Improving interface quality for 1-cm2 all-perovskite tandem solar cells," Nature, Nature, vol. 618(7963), pages 80-86, June.
    9. Junke Wang & Lewei Zeng & Dong Zhang & Aidan Maxwell & Hao Chen & Kunal Datta & Alessandro Caiazzo & Willemijn H. M. Remmerswaal & Nick R. M. Schipper & Zehua Chen & Kevin Ho & Akash Dasgupta & Gunnar, 2024. "Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells," Nature Energy, Nature, vol. 9(1), pages 70-80, January.
    10. Renxing Lin & Yurui Wang & Qianwen Lu & Beibei Tang & Jiayi Li & Han Gao & Yuan Gao & Hongjiang Li & Changzeng Ding & Jin Wen & Pu Wu & Chenshuaiyu Liu & Siyang Zhao & Ke Xiao & Zhou Liu & Changqi Ma , 2023. "All-perovskite tandem solar cells with 3D/3D bilayer perovskite heterojunction," Nature, Nature, vol. 620(7976), pages 994-1000, August.
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