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In-Situ LID and Regeneration of Al-BSF Solar Cells from Different Positions of a B-Doped Cz-Si Ingot

Author

Listed:
  • Siqi Ding

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Chen Yang

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Shuai Yuan

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Bin Ai

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
    Guangdong Provincial Key Laboratory of Photovoltaic Technologies, Sun Yat-sen University, Guangzhou 510006, China)

  • Cheng Qin

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Zhengke Li

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Yecheng Zhou

    (School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China)

  • Xiaopu Sun

    (CSG PVTECH Co., Ltd., Dongguan 523141, China)

  • Jianghai Yang

    (CSG PVTECH Co., Ltd., Dongguan 523141, China)

  • Quan Liu

    (CSG PVTECH Co., Ltd., Dongguan 523141, China)

  • Xueqin Liang

    (Yichang CSG Polysilicon Co., Ltd., Yichang 443007, China)

Abstract

In this paper, five groups of industrial aluminium back-surface-field (Al-BSF) solar cells were made from silicon wafers from different locations of a B-doped Czochralski silicon ingot. Then, we performed the first LID (45 °C, 1 sun, 12 h), regeneration (100 °C, 1 sun, 24 h), and second LID (45 °C, 1 sun, 12 h) treatments on the cells, and measured the in-situ changes of their I - V characteristic parameters by using an I - V tester during the experiment. The cells were also characterized by Suns- V oc measurement, full-area light beam induced current scanning, and external quantum efficiency measurement at the four breakpoints of treatments (before and after the first LID, after regeneration and the second LID). It was found that the LID and regeneration of the Al-BSF solar cells can be explained by the LID and regeneration reaction of B-O defects and the LID caused by dissociation of Fe-B pairs. After regeneration, the relative decay rate of efficiency decreased from 2.75–3.8% during the first LID to 0.42–1.23% during the second LID, indicating that regeneration treatment (100 °C, 1 sun, 24 h) can improve the anti-LID ability of Al-BSF solar cells.

Suggested Citation

  • Siqi Ding & Chen Yang & Shuai Yuan & Bin Ai & Cheng Qin & Zhengke Li & Yecheng Zhou & Xiaopu Sun & Jianghai Yang & Quan Liu & Xueqin Liang, 2022. "In-Situ LID and Regeneration of Al-BSF Solar Cells from Different Positions of a B-Doped Cz-Si Ingot," Energies, MDPI, vol. 15(15), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:15:p:5591-:d:877930
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    References listed on IDEAS

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    1. Haiyang Chen & Rui Zhang & Xiaobin Chen & Guang Zeng & Libor Kobera & Sabina Abbrent & Ben Zhang & Weijie Chen & Guiying Xu & Jiyeon Oh & So-Huei Kang & Shanshan Chen & Changduk Yang & Jiri Brus & Jia, 2021. "A guest-assisted molecular-organization approach for >17% efficiency organic solar cells using environmentally friendly solvents," Nature Energy, Nature, vol. 6(11), pages 1045-1053, November.
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    Cited by:

    1. Siqi Ding & Chen Yang & Cheng Qin & Bin Ai & Xiaopu Sun & Jianghai Yang & Quan Liu & Xueqin Liang, 2022. "Comparison of LID and Electrical Injection Regeneration of PERC and Al-BSF Solar Cells from a Cz-Si Ingot," Energies, MDPI, vol. 15(20), pages 1-16, October.
    2. Oyeniyi A. Alimi & Edson L. Meyer & Olufemi I. Olayiwola, 2022. "Solar Photovoltaic Modules’ Performance Reliability and Degradation Analysis—A Review," Energies, MDPI, vol. 15(16), pages 1-28, August.

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