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Monolithic Perovskite-Carrier Selective Contact Silicon Tandem Solar Cells Using Molybdenum Oxide as a Hole Selective Layer

Author

Listed:
  • Hoyoung Song

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Changhyun Lee

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Jiyeon Hyun

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Sang-Won Lee

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Dongjin Choi

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Dowon Pyun

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Jiyeon Nam

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Seok-Hyun Jeong

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Jiryang Kim

    (KU-KIST Green School, Graduate School of Energy and Environment, Korea University, Seoul 02841, Korea)

  • Soohyun Bae

    (National Agenda Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea)

  • Hyunju Lee

    (Meiji Renewable Energy Laboratory, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Japan)

  • Yoonmook Kang

    (KU-KIST Green School, Graduate School of Energy and Environment, Korea University, Seoul 02841, Korea)

  • Donghwan Kim

    (Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea)

  • Hae-Seok Lee

    (KU-KIST Green School, Graduate School of Energy and Environment, Korea University, Seoul 02841, Korea)

Abstract

Monolithic perovskite–silicon tandem solar cells with MoO x hole selective contact silicon bottom solar cells show a power conversion efficiency of 8%. A thin 15 nm-thick MoO x contact to n-type Si was used instead of a standard p + emitter to collect holes and the SiO x /n + poly-Si structure was deposited on the other side of the device for direct tunneling of electrons and this silicon bottom cell structure shows ~15% of power conversion efficiency. With this bottom carrier selective silicon cell, tin oxide, and subsequent perovskite structure were deposited to fabricate monolithic tandem solar cells. Monolithic tandem structure without ITO interlayer was also compared to confirm the role of MoO x in tandem cells and this tandem structure shows the power conversion efficiency of 3.3%. This research has confirmed that the MoO x layer simultaneously acts as a passivation layer and a hole collecting layer in this tandem structure.

Suggested Citation

  • Hoyoung Song & Changhyun Lee & Jiyeon Hyun & Sang-Won Lee & Dongjin Choi & Dowon Pyun & Jiyeon Nam & Seok-Hyun Jeong & Jiryang Kim & Soohyun Bae & Hyunju Lee & Yoonmook Kang & Donghwan Kim & Hae-Seok , 2021. "Monolithic Perovskite-Carrier Selective Contact Silicon Tandem Solar Cells Using Molybdenum Oxide as a Hole Selective Layer," Energies, MDPI, vol. 14(11), pages 1-9, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3108-:d:562810
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    References listed on IDEAS

    as
    1. Changhyun Lee & Soohyun Bae & HyunJung Park & Dongjin Choi & Hoyoung Song & Hyunju Lee & Yoshio Ohshita & Donghwan Kim & Yoonmook Kang & Hae-Seok Lee, 2020. "Properties of Thermally Evaporated Titanium Dioxide as an Electron-Selective Contact for Silicon Solar Cells," Energies, MDPI, vol. 13(3), pages 1-10, February.
    2. Kunta Yoshikawa & Hayato Kawasaki & Wataru Yoshida & Toru Irie & Katsunori Konishi & Kunihiro Nakano & Toshihiko Uto & Daisuke Adachi & Masanori Kanematsu & Hisashi Uzu & Kenji Yamamoto, 2017. "Silicon heterojunction solar cell with interdigitated back contacts for a photoconversion efficiency over 26%," Nature Energy, Nature, vol. 2(5), pages 1-8, May.
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    Cited by:

    1. Jianqin Li & Feng Wen & Shenghao Wang, 2023. "Perovskite Tandem Solar Cell Technologies," Energies, MDPI, vol. 16(4), pages 1-3, February.
    2. Changhyun Lee & Jiyeon Hyun & Jiyeon Nam & Seok-Hyun Jeong & Hoyoung Song & Soohyun Bae & Hyunju Lee & Jaeseung Seol & Donghwan Kim & Yoonmook Kang & Hae-Seok Lee, 2021. "Amorphous Silicon Thin Film Deposition for Poly-Si/SiO 2 Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region," Energies, MDPI, vol. 14(24), pages 1-9, December.

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