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Perovskite-silicon tandem solar cells with bilayer interface passivation

Xu, Xixiang
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Nature ( 2024 ) Cite this article

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Abstract

Two-terminal monolithic perovskite-silicon tandem solar cells demonstrate huge advantages in power conversion efficiency (PCE) compared to their respective single-junction counterparts 1,2 . However, suppressing interfacial recombination at the wide-bandgap perovskite/electron transport layer interface, without compromising its superior charge transport performance, remains a significant challenge for perovskite-silicon tandem cells 3,4 . By exploiting the nanoscale discretely distributed LiF ultrathin layer followed by an additional deposition of diammonium diiodide molecule, we have devised a bilayer intertwined passivation strategy that combines efficient electron extraction with further suppression of nonradiative recombination. We constructed perovskite-silicon tandem devices on double-side textured Czochralski (CZ)-based silicon heterojunction cell, which featured a mildly-textured front surface and a heavily-textured rear surface, leading to simultaneously enhanced photocurrent and uncompromised rear passivation. The resulting perovskite-silicon tandem achieved an independently certified stabilized PCE of 33.89%, accompanied by an impressive fill factor (FF) of 83.0% and an open-circuit voltage (V oc ) of nearly 1.97 volts. To our knowledge, this represents the first reported certified efficiency of a two-junction tandem solar cell exceeding the single-junction Shockley-Queisser limit of 33.7%.

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Author notes

  1. These authors contributed equally: Jiang Liu, Yongcai He, Lei Ding, Hua Zhang

Authors and Affiliations

  1. LONGi Central R&D Institute, LONGi Green Energy Technology Co., Ltd., Xi’an, China

    Jiang Liu, Yongcai He, Lei Ding, Hua Zhang, Qiaoyan Li, Lingbo Jia, Yuan Qin, Xiaobing Gu, Fu Zhang, Qibo Li, Ying Yang, Shuangshuang Zhao, Xiaoyong Wu, Jie Liu, Tong Liu, Yajun Gao, Yonglei Wang, Xin Dong, Hao Chen, Ping Li, Tianxiang Zhou, Miao Yang, Xiaoning Ru, Fuguo Peng, Shi Yin, Minghao Qu, Zhenguo Li, Bo He & Xixiang Xu

  2. College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, China

    Jiang Liu & Lei Ding

  3. Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu, China

    Jia Yu & Xiaohong Zhang

  4. Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

    Ting Wai Lau & Jun Yin

  5. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo City, Zhejiang Province, China

    Minghui Li & Chuanxiao Xiao

  6. Huaneng Clean Energy Research Institute, Beijing, China

    Dongming Zhao, Zhiguo Zhao, Menglei Li & Ping Xiao

  7. The Faculty of Materials and Manufacturing, Beijing University of technology, Beijing, China

    Penghui Guo

  8. International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Hui Yan

  9. Ningbo New Materials Testing and Evaluation Center CO., Ltd, Ningbo City, Zhejiang Province, China

    Chuanxiao Xiao

Authors

  1. Jiang Liu

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  2. Yongcai He

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  3. Lei Ding

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  4. Hua Zhang

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  5. Qiaoyan Li

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  6. Lingbo Jia

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  7. Jia Yu

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  8. Ting Wai Lau

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  9. Minghui Li

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  10. Yuan Qin

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  11. Xiaobing Gu

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  12. Fu Zhang

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  13. Qibo Li

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  14. Ying Yang

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  15. Shuangshuang Zhao

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  16. Xiaoyong Wu

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  17. Jie Liu

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  18. Tong Liu

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  19. Yajun Gao

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  20. Yonglei Wang

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  21. Xin Dong

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  22. Hao Chen

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  23. Ping Li

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  24. Tianxiang Zhou

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  25. Miao Yang

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  26. Xiaoning Ru

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  27. Fuguo Peng

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  28. Shi Yin

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  29. Minghao Qu

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  30. Dongming Zhao

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  31. Zhiguo Zhao

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  32. Menglei Li

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  33. Penghui Guo

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  34. Hui Yan

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  35. Chuanxiao Xiao

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  36. Ping Xiao

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  37. Jun Yin

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  38. Xiaohong Zhang

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  39. Zhenguo Li

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  40. Bo He

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  41. Xixiang Xu

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Corresponding authors

Correspondence to Jiang Liu , Ping Xiao , Jun Yin , Xiaohong Zhang , Zhenguo Li , Bo He or Xixiang Xu .

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Cite this article

Liu, J., He, Y., Ding, L. et al. Perovskite-silicon tandem solar cells with bilayer interface passivation. Nature (2024). https://doi.org/10.1038/s41586-024-07997-7

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  • DOI : https://doi.org/10.1038/s41586-024-07997-7

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