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A fluorene-terminated hole-transporting material for highly efficient and stable perovskite solar cells

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  • Nam Joong Jeon

    (Korea Research Institute of Chemical Technology (KRICT))

  • Hyejin Na

    (Korea Research Institute of Chemical Technology (KRICT))

  • Eui Hyuk Jung

    (Korea Research Institute of Chemical Technology (KRICT))

  • Tae-Youl Yang

    (Korea Research Institute of Chemical Technology (KRICT))

  • Yong Guk Lee

    (Korea Research Institute of Chemical Technology (KRICT))

  • Geunjin Kim

    (Korea Research Institute of Chemical Technology (KRICT))

  • Hee-Won Shin

    (Sungkyunkwan University)

  • Sang Seok

    (Korea Research Institute of Chemical Technology (KRICT)
    Ulsan National Institute of Science and Technology (UNIST))

  • Jaemin Lee

    (Korea Research Institute of Chemical Technology (KRICT))

  • Jangwon Seo

    (Korea Research Institute of Chemical Technology (KRICT))

Abstract

Perovskite solar cells (PSCs) require both high efficiency and good long-term stability if they are to be commercialized. It is crucial to finely optimize the energy level matching between the perovskites and hole-transporting materials to achieve better performance. Here, we synthesize a fluorene-terminated hole-transporting material with a fine-tuned energy level and a high glass transition temperature to ensure highly efficient and thermally stable PSCs. We use this material to fabricate photovoltaic devices with 23.2% efficiency (under reverse scanning) with a steady-state efficiency of 22.85% for small-area (~0.094 cm2) cells and 21.7% efficiency (under reverse scanning) for large-area (~1 cm2) cells. We also achieve certified efficiencies of 22.6% (small-area cells, ~0.094 cm2) and 20.9% (large-area, ~1 cm2). The resultant device shows better thermal stability than the device with spiro-OMeTAD, maintaining almost 95% of its initial performance for more than 500 h after thermal annealing at 60 °C.

Suggested Citation

  • Nam Joong Jeon & Hyejin Na & Eui Hyuk Jung & Tae-Youl Yang & Yong Guk Lee & Geunjin Kim & Hee-Won Shin & Sang Seok & Jaemin Lee & Jangwon Seo, 2018. "A fluorene-terminated hole-transporting material for highly efficient and stable perovskite solar cells," Nature Energy, Nature, vol. 3(8), pages 682-689, August.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:8:d:10.1038_s41560-018-0200-6
    DOI: 10.1038/s41560-018-0200-6
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    Cited by:

    1. Laxmi Nakka & Armin Gerhard Aberle & Fen Lin, 2022. "Effects of Overnight Oxidation on Perovskite Solar Cells with Co(III)TFSI Co-Doped Spiro-OMeTAD," Energies, MDPI, vol. 16(1), pages 1-11, December.
    2. Issa M.Aziz, 2023. "A review of thin film solar cell," Technium, Technium Science, vol. 10(1), pages 6-13.
    3. Jiyeon Hyun & Kyung Mun Yeom & Ha Eun Lee & Donghwan Kim & Hae-Seok Lee & Jun Hong Noh & Yoonmook Kang, 2021. "Efficient n-i-p Monolithic Perovskite/Silicon Tandem Solar Cells with Tin Oxide via a Chemical Bath Deposition Method," Energies, MDPI, vol. 14(22), pages 1-10, November.
    4. Sara Jalali & Eleonora Nicoletti & Lidia Badarnah, 2024. "From Flora to Solar Adaptive Facades: Integrating Plant-Inspired Design with Photovoltaic Technologies," Sustainability, MDPI, vol. 16(3), pages 1-18, January.
    5. Cuili Gai & Jigang Wang & Yongsheng Wang & Junming Li, 2019. "The Low-Dimensional Three-Dimensional Tin Halide Perovskite: Film Characterization and Device Performance," Energies, MDPI, vol. 13(1), pages 1-26, December.
    6. Soonil Hong & Jinho Lee, 2022. "Recent Advances and Challenges toward Efficient Perovskite/Organic Integrated Solar Cells," Energies, MDPI, vol. 16(1), pages 1-19, December.
    7. Omar M. Saif & Yasmine Elogail & Tarek M. Abdolkader & Ahmed Shaker & Abdelhalim Zekry & Mohamed Abouelatta & Marwa S. Salem & Mostafa Fedawy, 2023. "Comprehensive Review on Thin Film Homojunction Solar Cells: Technologies, Progress and Challenges," Energies, MDPI, vol. 16(11), pages 1-23, May.

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