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On-device lead sequestration for perovskite solar cells

Author

Listed:
  • Xun Li

    (Northern Illinois University)

  • Fei Zhang

    (National Renewable Energy Laboratory)

  • Haiying He

    (Northern Illinois University
    Valparaiso University)

  • Joseph J. Berry

    (National Renewable Energy Laboratory)

  • Kai Zhu

    (National Renewable Energy Laboratory)

  • Tao Xu

    (Northern Illinois University)

Abstract

Perovskite solar cells, as an emerging high-efficiency and low-cost photovoltaic technology1–6, face obstacles on their way towards commercialization. Substantial improvements have been made to device stability7–10, but potential issues with lead toxicity and leaching from devices remain relatively unexplored11–16. The potential for lead leakage could be perceived as an environmental and public health risk when using perovskite solar cells in building-integrated photovoltaics17–23. Here we present a chemical approach for on-device sequestration of more than 96 per cent of lead leakage caused by severe device damage. A coating of lead-absorbing material is applied to the front and back sides of the device stack. On the glass side of the front transparent conducting electrode, we use a transparent lead-absorbing molecular film containing phosphonic acid groups that bind strongly to lead. On the back (metal) electrode side, we place a polymer film blended with lead-chelating agents between the metal electrode and a standard photovoltaic packing film. The lead-absorbing films on both sides swell to absorb the lead, rather than dissolve, when subjected to water soaking, thus retaining structural integrity for easy collection of lead after damage.

Suggested Citation

  • Xun Li & Fei Zhang & Haiying He & Joseph J. Berry & Kai Zhu & Tao Xu, 2020. "On-device lead sequestration for perovskite solar cells," Nature, Nature, vol. 578(7796), pages 555-558, February.
    • Handle: RePEc:nat:nature:v:578:y:2020:i:7796:d:10.1038_s41586-020-2001-x
    DOI: 10.1038/s41586-020-2001-x
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    Cited by:

    1. Kumar, Ajeet & Park, Sung Hoon & Patil, Deepak Rajaram & Hwang, Geon-Tae & Ryu, Jungho, 2022. "Effect of aspect ratio of piezoelectric constituents on the energy harvesting performance of magneto-mechano-electric generators," Energy, Elsevier, vol. 239(PB).
    2. Bo Chen & Chengbin Fei & Shangshang Chen & Hangyu Gu & Xun Xiao & Jinsong Huang, 2021. "Recycling lead and transparent conductors from perovskite solar modules," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    3. Tianpeng Li & Bin Li & Yingguo Yang & Zuoming Jin & Zhiguo Zhang & Peilin Wang & Liangliang Deng & Yiqiang Zhan & Qinghong Zhang & Jia Liang, 2024. "Metal chalcogenide electron extraction layers for nip-type tin-based perovskite solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    4. Krebs-Moberg, Miles & Pitz, Mandy & Dorsette, Tiara L. & Gheewala, Shabbir H., 2021. "Third generation of photovoltaic panels: A life cycle assessment," Renewable Energy, Elsevier, vol. 164(C), pages 556-565.
    5. Ziyao Yue & Hu Guo & Yuanhang Cheng, 2023. "Toxicity of Perovskite Solar Cells," Energies, MDPI, vol. 16(10), pages 1-24, May.

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