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Enhanced electron extraction using SnO2 for high-efficiency planar-structure HC(NH2)2PbI3-based perovskite solar cells

Author

Listed:
  • Qi Jiang

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Liuqi Zhang

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Haolin Wang

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Xiaolei Yang

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Junhua Meng

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Heng Liu

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Zhigang Yin

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Jinliang Wu

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Xingwang Zhang

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

  • Jingbi You

    (Key Lab of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences)

Abstract

Planar structures for halide perovskite solar cells have recently garnered attention, due to their simple and low-temperature device fabrication processing. Unfortunately, planar structures typically show I–V hysteresis and lower stable device efficiency compared with mesoporous structures, especially for TiO2-based n-i-p devices. SnO2, which has a deeper conduction band and higher electron mobility compared with traditional TiO2, could enhance charge transfer from perovskite to electron transport layers, and reduce charge accumulation at the interface. Here we report low-temperature solution-processed SnO2 nanoparticles as an efficient electron transport layer for perovskite solar cells. Our SnO2-based devices are almost free of hysteresis, which we propose is due to the enhancement of electron extraction. By introducing a PbI2 passivation phase in the perovskite layer, we obtain a 19.9 ± 0.6% certified efficiency. The devices can be easily processed under low temperature (150 ∘C), offering an efficient method for the large-scale production of perovskite solar cells.

Suggested Citation

  • Qi Jiang & Liuqi Zhang & Haolin Wang & Xiaolei Yang & Junhua Meng & Heng Liu & Zhigang Yin & Jinliang Wu & Xingwang Zhang & Jingbi You, 2017. "Enhanced electron extraction using SnO2 for high-efficiency planar-structure HC(NH2)2PbI3-based perovskite solar cells," Nature Energy, Nature, vol. 2(1), pages 1-7, January.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:1:d:10.1038_nenergy.2016.177
    DOI: 10.1038/nenergy.2016.177
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    Cited by:

    1. Neda Irannejad & Narges Yaghoobi Nia & Siavash Adhami & Enrico Lamanna & Behzad Rezaei & Aldo Di Carlo, 2020. "Polymer/Inorganic Hole Transport Layer for Low-Temperature-Processed Perovskite Solar Cells," Energies, MDPI, vol. 13(8), pages 1-12, April.

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