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Silicon heterojunction solar cells with up to 26.81% efficiency achieved by electrically optimized nanocrystalline-silicon hole contact layers

Author

Listed:
  • Hao Lin

    (LONGi Green Energy Technology Co., Ltd.
    Sun Yat-sen University)

  • Miao Yang

    (LONGi Green Energy Technology Co., Ltd.)

  • Xiaoning Ru

    (LONGi Green Energy Technology Co., Ltd.)

  • Genshun Wang

    (LONGi Green Energy Technology Co., Ltd.
    Sun Yat-sen University)

  • Shi Yin

    (LONGi Green Energy Technology Co., Ltd.)

  • Fuguo Peng

    (LONGi Green Energy Technology Co., Ltd.)

  • Chengjian Hong

    (LONGi Green Energy Technology Co., Ltd.)

  • Minghao Qu

    (LONGi Green Energy Technology Co., Ltd.)

  • Junxiong Lu

    (LONGi Green Energy Technology Co., Ltd.)

  • Liang Fang

    (LONGi Green Energy Technology Co., Ltd.)

  • Can Han

    (Sun Yat-sen University
    Delft University of Technology)

  • Paul Procel

    (Delft University of Technology)

  • Olindo Isabella

    (Delft University of Technology)

  • Pingqi Gao

    (Sun Yat-sen University)

  • Zhenguo Li

    (LONGi Green Energy Technology Co., Ltd.)

  • Xixiang Xu

    (LONGi Green Energy Technology Co., Ltd.)

Abstract

Silicon heterojunction (SHJ) solar cells have reached high power conversion efficiency owing to their effective passivating contact structures. Improvements in the optoelectronic properties of these contacts can enable higher device efficiency, thus further consolidating the commercial potential of SHJ technology. Here we increase the efficiency of back junction SHJ solar cells with improved back contacts consisting of p-type doped nanocrystalline silicon and a transparent conductive oxide with a low sheet resistance. The electrical properties of the hole-selective contact are analysed and compared with a p-type doped amorphous silicon contact. We demonstrate improvement in the charge carrier transport and a low contact resistivity (

Suggested Citation

  • Hao Lin & Miao Yang & Xiaoning Ru & Genshun Wang & Shi Yin & Fuguo Peng & Chengjian Hong & Minghao Qu & Junxiong Lu & Liang Fang & Can Han & Paul Procel & Olindo Isabella & Pingqi Gao & Zhenguo Li & X, 2023. "Silicon heterojunction solar cells with up to 26.81% efficiency achieved by electrically optimized nanocrystalline-silicon hole contact layers," Nature Energy, Nature, vol. 8(8), pages 789-799, August.
    • Handle: RePEc:nat:natene:v:8:y:2023:i:8:d:10.1038_s41560-023-01255-2
    DOI: 10.1038/s41560-023-01255-2
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    References listed on IDEAS

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    1. Wenzhu Liu & Jianhua Shi & Liping Zhang & Anjun Han & Shenglei Huang & Xiaodong Li & Jun Peng & Yuhao Yang & Yajun Gao & Jian Yu & Kai Jiang & Xinbo Yang & Zhenfei Li & Wenjie Zhao & Junlin Du & Xin S, 2022. "Light-induced activation of boron doping in hydrogenated amorphous silicon for over 25% efficiency silicon solar cells," Nature Energy, Nature, vol. 7(5), pages 427-437, May.
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    Cited by:

    1. Yehui Wen & Tianchi Zhang & Xingtao Wang & Tiantian Liu & Yu Wang & Rui Zhang & Miao Kan & Li Wan & Weihua Ning & Yong Wang & Deren Yang, 2024. "Amorphous (lysine)2PbI2 layer enhanced perovskite photovoltaics," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Genshun Wang & Qiao Su & Hanbo Tang & Hua Wu & Hao Lin & Can Han & Tingting Wang & Chaowei Xue & Junxiong Lu & Liang Fang & Zhenguo Li & Xixiang Xu & Pingqi Gao, 2024. "27.09%-efficiency silicon heterojunction back contact solar cell and going beyond," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    3. Taojian Wu & Zhaolang Liu & Hao Lin & Pingqi Gao & Wenzhong Shen, 2024. "Free-standing ultrathin silicon wafers and solar cells through edges reinforcement," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    4. Chenxu Zhao & Zhiwen Zhou & Masaud Almalki & Michael A. Hope & Jiashang Zhao & Thibaut Gallet & Anurag Krishna & Aditya Mishra & Felix T. Eickemeyer & Jia Xu & Yingguo Yang & Shaik M. Zakeeruddin & Al, 2024. "Stabilization of highly efficient perovskite solar cells with a tailored supramolecular interface," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    5. Bin Wen & Tian Chen & Qixin Yin & Jiangsheng Xie & Chaohua Dai & Ruohao Lin & Sicen Zhou & Jiancan Yu & Pingqi Gao, 2024. "Robust chelated lead octahedron surface for efficient and stable perovskite solar cells," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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