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Solar power-generation window: on-demand preparation of fully transparent p-n junction devices by nanoparticle coating

Research Project

Project/Area Number 19K22096
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 28:Nano/micro science and related fields
Research InstitutionTohoku University

Principal Investigator

Kanie Kiyoshi  東北大学, 多元物質科学研究所, 教授 (60302767)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsナノ粒子 / 透明導電性酸化物 / p-型半導体 / 液相合成 / p-n接合 / 透明デバイス / ナノインク / 透明導電性金属酸化物 / p-n 接合
Outline of Research at the Start

透明導電性金属酸化物(TCO)は,可視光領域での透明性と導電性を併せ持つ材料である.その製造法として近年,インク塗布法が注目されている.しかしながら,その開発の中心はn-型TCOである.一方,p-n接合を鍵とする熱電変換材料や太陽電池分野において,p-型TCOに注目が集まりつつある.そこで本研究は,世界に先駆けてp-型TCOナノ粒子の厳密サイズ・形態制御液相合成法を開拓し,低抵抗かつ高透明性を両立するp-型TCOナノインクを調製する.また,代表者の高品位n-型TCOナノインクと組み合わせることにより,インク塗布プロセスにおいて透明導電性p-n 接合型の“発電する窓ガラス”を試作する.

Outline of Final Research Achievements

ITO is an n-type transparent conducting metal oxide (TCO) in which electrons are carriers. On the other hand, p-type TCOs, in which holes are carriers, are attracting attention. In this study, we developed liquid-phase synthesis methods for p-type TCO nanoparticles controlling in their size and shape. The nanoparticles were applied to prepare p-type TCO nano-ink with both low resistivity and high transparency. For n-type TCO, we succeeded in developing nanomaterials with practical performance by a novel the thin-film preparation method.

Academic Significance and Societal Importance of the Research Achievements

ITOは薄膜テレビ,パソコン,モバイル機器などに欠かすことができないTCOであり,スパッタ成膜法により調製されている.本研究の遂行により,ナノ粒子塗布により高性能なITO薄膜が常温・大気圧下において調製できることが示されたことは意義深い.この手法をホールがキャリアとなるp-型TCOに適用する事ができれば,完全透明p-n接合デバイスの創製となり,電池分野なのでの活用が期待される.本研究では,p-型半導体特性を示すナノ粒子の開発に成功した.さらなる低抵抗化を継続することで,実用化が見込まれる材料を見いだせたことは,高い学術的・社会的意義を有すると考えている.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 7 results)

  • [Journal Article] A Nanoparticle-Mist Deposition Method: Fabrication of High-Performance ITO Flexible Thin Films under Atmospheric Conditions2021

    • Author(s)
      Ryoko Suzuki, Yasutaka Nishi, Masaki Matsubara, Atsushi Muramatsu, and Kiyoshi Kanie
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 10584-10584

    • DOI

      10.1038/s41598-021-90028-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A mild aqueous synthesis of ligand-free copper nanoparticles for low temperature sintering nanopastes by nickel salt assisting2021

    • Author(s)
      Hiroshi Imamura, Yoichi Kamikoriyama, Atsushi Muramatsu, and Kiyoshi Kanie
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 24268-24268

    • DOI

      10.1038/s41598-021-03707-9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single-crystalline ITO Nanoparticles with Protrusions: Shape-induced Stable Dispersibility in Water2020

    • Author(s)
      R. Suzuki, Y. Nishi, M. Matsubara, A. Muramatsu, and K. Kanie
    • Journal Title

      ACS Applied Nano Materials

      Volume: 3 Issue: 5 Pages: 4870-4879

    • DOI

      10.1021/acsanm.0c01023

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gallium-Doped Zinc Oxide Nanoparticle Thin Films as Transparent Electrode Materials with High Conductivity2020

    • Author(s)
      Yasutaka Nishi, Yuki Kasai, Ryoko Suzuki, Masaki Matsubara, Atsushi Muramatsu, Kiyoshi Kanie
    • Journal Title

      ACS Applied Nano Materials

      Volume: 3 Issue: 10 Pages: 9622-9632

    • DOI

      10.1021/acsanm.0c01471

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] ナノ粒子の液相精密合成法に基づく 電子デバイス向けナノ材料開発2020

    • Author(s)
      蟹江澄志
    • Organizer
      電子デバイス実装研究委員会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Size- and Shape-controlled Liquid Phase Synthesis of Inorganic Nanoparticles and Application to Organic-inorganic Hybrid Materials2020

    • Author(s)
      Kiyoshi Kanie
    • Organizer
      Australia Japan Colloids Symposium
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] サイズ・形態制御無機ナノ粒子精密合成に基づく機能性材料創製2019

    • Author(s)
      蟹江澄志
    • Organizer
      第4回熱電変換薄膜材料及びプロセス開発研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 無機ナノ粒子のサイズ・形態制御液相合成法の開発とハイブリッドナノ材料への展開2019

    • Author(s)
      蟹江澄志
    • Organizer
      先進セラミックス第124委員会 研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Size- and Shape-controlled Nanoparticle-based Functional Nanoinks for Printed Electronics2019

    • Author(s)
      Kiyoshi Kanie
    • Organizer
      ADVANCESD DISPLAY MATERIALS & DEVICES
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Liquid Phase Synthesis of Functional Nanoparticles Controlled in Size and Shape and their Application to Printed Electronics Technology2019

    • Author(s)
      Kiyoshi Kanie
    • Organizer
      2nd Global Forum on Advanced Materials and Technologies for Sustainable Development
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Liquid Phase Synthesis of Functional Nanoparticles Controlled in Size and Shape for Printed Electronics Technology2019

    • Author(s)
      Kiyoshi Kanie
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2019-07-04   Modified: 2023-01-30  

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