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Ionic transport in hybrid lead iodide perovskite solar cells

Author

Listed:
  • Christopher Eames

    (University of Bath)

  • Jarvist M. Frost

    (University of Bath)

  • Piers R. F. Barnes

    (Imperial College London)

  • Brian C. O’Regan

    (Imperial College London)

  • Aron Walsh

    (University of Bath)

  • M. Saiful Islam

    (University of Bath)

Abstract

Solar cells based on organic–inorganic halide perovskites have recently shown rapidly rising power conversion efficiencies, but exhibit unusual behaviour such as current–voltage hysteresis and a low-frequency giant dielectric response. Ionic transport has been suggested to be an important factor contributing to these effects; however, the chemical origin of this transport and the mobile species are unclear. Here, the activation energies for ionic migration in methylammonium lead iodide (CH3NH3PbI3) are derived from first principles, and are compared with kinetic data extracted from the current–voltage response of a perovskite-based solar cell. We identify the microscopic transport mechanisms, and find facile vacancy-assisted migration of iodide ions with an activation energy of 0.6 eV, in good agreement with the kinetic measurements. The results of this combined computational and experimental study suggest that hybrid halide perovskites are mixed ionic–electronic conductors, a finding that has major implications for solar cell device architectures.

Suggested Citation

  • Christopher Eames & Jarvist M. Frost & Piers R. F. Barnes & Brian C. O’Regan & Aron Walsh & M. Saiful Islam, 2015. "Ionic transport in hybrid lead iodide perovskite solar cells," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8497
    DOI: 10.1038/ncomms8497
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    Cited by:

    1. Yingjie Tang & Peng Jin & Yan Wang & Dingwei Li & Yitong Chen & Peng Ran & Wei Fan & Kun Liang & Huihui Ren & Xuehui Xu & Rui Wang & Yang (Michael) Yang & Bowen Zhu, 2023. "Enabling low-drift flexible perovskite photodetectors by electrical modulation for wearable health monitoring and weak light imaging," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Khan, Firoz & Rezgui, Béchir Dridi & Khan, Mohd Taukeer & Al-Sulaiman, Fahad, 2022. "Perovskite-based tandem solar cells: Device architecture, stability, and economic perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    3. Wei Qin & Wajid Ali & Jianfeng Wang & Yong Liu & Xiaolan Yan & Pengfei Zhang & Zhaochi Feng & Hao Tian & Yanfeng Yin & Wenming Tian & Can Li, 2023. "Suppressing non-radiative recombination in metal halide perovskite solar cells by synergistic effect of ferroelasticity," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Yuhang Liang & Feng Li & Xiangyuan Cui & Taoyuze Lv & Catherine Stampfl & Simon P. Ringer & Xudong Yang & Jun Huang & Rongkun Zheng, 2024. "Toward stabilization of formamidinium lead iodide perovskites by defect control and composition engineering," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    5. Zhuang Zhang & Huanhuan Wang & T. Jesper Jacobsson & Jingshan Luo, 2022. "Big data driven perovskite solar cell stability analysis," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    6. Taeyong Kim & Soyeon Park & Vasudevan Iyer & Basamat Shaheen & Usama Choudhry & Qi Jiang & Gage Eichman & Ryan Gnabasik & Kyle Kelley & Benjamin Lawrie & Kai Zhu & Bolin Liao, 2023. "Mapping the pathways of photo-induced ion migration in organic-inorganic hybrid halide perovskites," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    7. Tingting Zhu & Jie Bie & Chengmin Ji & Xinyuan Zhang & Lina Li & Xitao Liu & Xiao-Ying Huang & Wei Fa & Shuang Chen & Junhua Luo, 2022. "Circular polarized light-dependent anomalous photovoltaic effect from achiral hybrid perovskites," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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