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Electrochemically deposited pn-junction solar cells based on iron oxide

Research Project

Project/Area Number 18K04232
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionNagoya Institute of Technology

Principal Investigator

Ichimura Masaya  名古屋工業大学, 工学(系)研究科(研究院), 教授 (30203110)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords酸化鉄 / 太陽電池 / 電気化学堆積 / pn接合 / 伝導型制御
Outline of Final Research Achievements

Thin film solar cells based on iron oxide were fabricated by electrochemical deposition. Iron oxide is cheap, abundant, and electrochemical deposition is simple, cost-effective. Thus, one can expect drastic reduction in production cost of solar cells. The main results are summarized as follows. 1) FeOOH thin films were obtained using an aqueous solution containing FeSO4, and were converted to Fe2O3 by annealing. 2) Non-doped films were n-type, while films deposited with CuSO4 added to the solution were p-type. 3) Pulse-biasing in the deposition leaded to better surface morphology and composition uniformity of Cu-doped films. 4) pn junction solar cells were successfully fabricated by depositing non-doped and Cu-doped iron oxide films.

Academic Significance and Societal Importance of the Research Achievements

無添加n型層と銅添加p型層からなる酸化鉄ホモ接合のpn接合ダイオードおよび太陽電池を初めて作製、報告したことは本研究の大きな成果と言える。酸化鉄という古い材料が、安価で豊富な新しい太陽電池材料として注目を浴びるきっかけになることを願う。しかし、作製した素子のエネルギー変換効率はまだきわめて低く、実用化にはさらなる画期的な改善策が必要である。この研究を今後も継続し、資源エネルギー問題の解決と地球温暖化防止に貢献したい。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2022 2020 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Pulse electrochemical deposition of Cu-doped p-type Fe-O thin films and fabrication of n-Fe-O/p-Fe-O solar cells2020

    • Author(s)
      Takayanagi Ryohei、Ichimura Masaya
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: 11 Pages: 111002-111002

    • DOI

      10.35848/1347-4065/abc49c

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of photovoltaic FeSxOy/ZnO heterostructures by electrochemical deposition2019

    • Author(s)
      Ji Wen、Ichimura Masaya
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 5 Pages: 050922-050922

    • DOI

      10.7567/1347-4065/ab1975

    • NAID

      210000155744

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electrochemical deposition of Cu-doped p-type iron oxide thin films2018

    • Author(s)
      S. Kobayashi and M. Ichimura
    • Journal Title

      Semicond. Sci. Technol.

      Volume: 33 Issue: 10 Pages: 105006-105006

    • DOI

      10.1088/1361-6641/aad76a

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Fe2O3-based pn junction solar cells with a Mg(OH)2 interface layer2022

    • Author(s)
      M. Ichimura, R. Takayanagi
    • Organizer
      Symposium on Earth-Abundant Materials for Future Photovoltaics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中間層に水酸化マグネシウム薄膜を用いた酸化鉄薄膜太陽電池の作製2022

    • Author(s)
      村上諒、市村正也
    • Organizer
      2022年応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 電気化学堆積法による酸化鉄薄膜太陽電池の作製2019

    • Author(s)
      高柳、市村
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Fe2O3-based pn junction solar cell fabricated by electrochemical deposition2019

    • Author(s)
      S. Kobayashi and M. Ichimura
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 酒石酸添加三段パルス電気化学堆積によるFeSxOy薄膜の作製とZnO/FeSxOyヘテロ接合太陽電池の作製2018

    • Author(s)
      W. Ji and M. Ichimura
    • Organizer
      電子情報通信学会技術研究報告
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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