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Development of photooxidation doping technique for low dimensional organic semiconductor materials

Research Project

Project/Area Number 18K04947
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 29020:Thin film/surface and interfacial physical properties-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

IKEURA-SEKIGUCHI HIROMI  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (90357319)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords有機半導体 / ドーピング / 放射光 / 電子状態 / X線吸収分光 / 電子分光 / X線吸収分光
Outline of Final Research Achievements

Elucidation of the molecular doping mechanism in organic semiconductors is indispensable for improving the low conductivity of organic semiconductors and developing new methods for producing high-performance organic devices. Little understanding compared to doping with inorganic semiconductors. In this research, we aim to construct a new photodoping method using chemical modification that can be applied to single molecular chains such as polymers, including low-dimensional materials such as graphene. To elucidate the mechanism and construct the fundamental principles, basic research was conducted. As a result, it was clarified that photooxidative doping of organic semiconductors exhibits band conduction similar to the conduction mechanism of inorganic semiconductors.

Academic Significance and Societal Importance of the Research Achievements

化学的酸化剤や電気化学的方法により高分子を部分酸化することでp型ドーピングを行う手法が古くから利用されている。本研究では、高分子にスルホン酸基の前駆体として硫化メチル基を化学修飾させ、光照射によりスルホン酸基に変化させることでドーピングする新たな手法構築の基礎研究を行っている。光が照射された場所だけを局所ドーピングできるため、従来法では困難な、ナノデバイス作製で必要とされる原子スケールでの領域選択的ドーピングや導電率制御を可能にする。また、化学修飾を利用するため、高濃度ドーピングでの分子のゆがみやドーパントの脱離による伝導率低下などの問題も解決できると期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (6 results) (of which Open Access: 3 results,  Peer Reviewed: 2 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] X-ray absorption spectroscopy of condensed sugar-phosphates2020

    • Author(s)
      Ikeura-Sekiguchi Hiromi、Sekiguchi Tetsuhiro
    • Journal Title

      Photon Factory Activity Report 2019

      Volume: 37 Pages: 231-231

    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] Unoccupied conduction band of chloroaluminum phthalocyanine2019

    • Author(s)
      Ikeura-Sekiguchi Hiromi、Sekiguchi Tetsuhiro
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: SI Pages: SIIC04-SIIC04

    • DOI

      10.7567/1347-4065/ab19a6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electronic structure of axial ligand chain in chloroaluminum phthalocyanine2019

    • Author(s)
      Ikeura-Sekiguchi Hiromi、Sekiguchi Tetsuhiro
    • Journal Title

      Photon Factory Activity Report 2018

      Volume: 36 Pages: 181-181

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Journal Article] Unoccupied conduction band of chloroaluminum phthalocyanine2019

    • Author(s)
      Hiromi Ikeura-Sekiguchi, Tetsuhiro Sekiguchi
    • Journal Title

      JAPANESE JOURNAL OF APPLIED PHYSICS

      Volume: 印刷中 Pages: 0-0

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Surface Characterization of Polycrystalline Hemin2018

    • Author(s)
      Hiromi Ikeura-Sekiguchi, Tetsuhiro Sekiguchi
    • Journal Title

      Photon Factory Activity Report 2017

      Volume: 35 Pages: 259-259

    • Related Report
      2018 Research-status Report
  • [Journal Article] 共鳴オージェ電子分光によるポリジメチルシランの非占有電子状態の研究2018

    • Author(s)
      小川 博嗣、池浦広美、関口哲弘
    • Journal Title

      Photon Factory Activity Report 2017

      Volume: 35 Pages: 255-255

    • Related Report
      2018 Research-status Report
    • Open Access
  • [Presentation] 産総研つくばセンター電子加速器施設の現状2021

    • Author(s)
      田中真人、池浦広美、他21名
    • Organizer
      第34回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 塩化アルミニウムフタロシアニンの金属-軸配位子オリゴマー鎖の電子状態2020

    • Author(s)
      池浦広美、関口哲弘
    • Organizer
      第33回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Photoluminescence and Raman Spectroscopy of Laser Affected Zone in Ultrafast Laser Microprocessing of Polydimethylsiloxane (PDMS)2019

    • Author(s)
      H. Ogawa, T. Shibuya, Y. Moriai, D. Satoh, H. Ikeura-Sekiguchi, E. Terasawa, M. Tanaka, R. Kuroda
    • Organizer
      15th International Conference on Laser Ablation (COLA 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unoccupied Surface and Bulk States of Hemin and Phthalocyanine Compounds2018

    • Author(s)
      Hiromi Ikeura-Sekiguchi, Tetsuhiro Sekiguchi
    • Organizer
      14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unoccupied Electronic Structures and Applications of Organosilicon Polymers2018

    • Author(s)
      Hiroshi Ogawa, Hiromi Ikeura-Sekiguchi, Tetsuhiro Sekiguchi
    • Organizer
      14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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