中国物理B ›› 2022, Vol. 31 ›› Issue (8): 88801-088801.doi: 10.1088/1674-1056/ac693d

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Optical simulation of CsPbI3/TOPCon tandem solar cells with advanced light management

Min Yue(岳敏)1,2,3, Yan Wang(王燕)1,2,†, Hui-Li Liang(梁会力)1,2, and Zeng-Xia Mei (梅增霞)1,2,‡   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Songshan Lake Materials Laboratory, Dongguan 523808, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2022-03-16 修回日期:2022-04-14 接受日期:2022-04-22 出版日期:2022-07-18 发布日期:2022-08-02
  • 通讯作者: Yan Wang, Zeng-Xia Mei E-mail:ywang16@iphy.ac.cn;zxmei@iphy.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61904201 and 11875088) and the Guangdong Basic and Applied Basic Research Foundation, China (Grant No. 2019B1515120057).

Optical simulation of CsPbI3/TOPCon tandem solar cells with advanced light management

Min Yue(岳敏)1,2,3, Yan Wang(王燕)1,2,†, Hui-Li Liang(梁会力)1,2, and Zeng-Xia Mei (梅增霞)1,2,‡   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Songshan Lake Materials Laboratory, Dongguan 523808, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-03-16 Revised:2022-04-14 Accepted:2022-04-22 Online:2022-07-18 Published:2022-08-02
  • Contact: Yan Wang, Zeng-Xia Mei E-mail:ywang16@iphy.ac.cn;zxmei@iphy.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61904201 and 11875088) and the Guangdong Basic and Applied Basic Research Foundation, China (Grant No. 2019B1515120057).

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摘要： Monolithic perovskite/Si tandem solar cells (TSCs) have experienced rapid development in recent years, demonstrating its potential to exceed the Shockley-Queisser limit of single junction Si solar cells. Unlike typical organic-inorganic hybrid perovskite/silicon heterojunction TSCs, here we propose CsPbI3/TOPCon TSC, which is a promising architecture in consideration of its pleasurable thermal stability and good compatibility with current PERC production lines. The optical performance of CsPbI3/TOPCon TSCs is simulated by the combination of ray-tracing method and transfer matrix method. The light management of the CsPbI3/TOPCon TSC begins with the optimization of the surface texture on Si subcell, indicating that a bifacial inverted pyramid with a small bottom angle of rear-side enables a further minimization of the optical losses. Current matching between the subcells, as well as the parasitic absorption loss from the front transparent conductive oxide, is analyzed and discussed in detail. Finally, an optimized configuration of CsPbI3/TOPCon TSC with a 31.78% power conversion efficiency is proposed. This work provides a practical guidance for approaching high-efficiency perovskite/Si TSCs.

关键词: perovskite/Si tandem solar cells, simulation, TOPCon, CsPbI3

Abstract: Monolithic perovskite/Si tandem solar cells (TSCs) have experienced rapid development in recent years, demonstrating its potential to exceed the Shockley-Queisser limit of single junction Si solar cells. Unlike typical organic-inorganic hybrid perovskite/silicon heterojunction TSCs, here we propose CsPbI3/TOPCon TSC, which is a promising architecture in consideration of its pleasurable thermal stability and good compatibility with current PERC production lines. The optical performance of CsPbI3/TOPCon TSCs is simulated by the combination of ray-tracing method and transfer matrix method. The light management of the CsPbI3/TOPCon TSC begins with the optimization of the surface texture on Si subcell, indicating that a bifacial inverted pyramid with a small bottom angle of rear-side enables a further minimization of the optical losses. Current matching between the subcells, as well as the parasitic absorption loss from the front transparent conductive oxide, is analyzed and discussed in detail. Finally, an optimized configuration of CsPbI3/TOPCon TSC with a 31.78% power conversion efficiency is proposed. This work provides a practical guidance for approaching high-efficiency perovskite/Si TSCs.

Key words: perovskite/Si tandem solar cells, simulation, TOPCon, CsPbI3

中图分类号:  (Solar cells (photovoltaics))

  • 88.40.H-
88.40.hj (Efficiency and performance of solar cells) 84.60.Jt (Photoelectric conversion)