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Quantitative Analysis of Interfacial Charge Transport Mechanisms and Molecular Orientation Behavior of Organic Devices by Nonlinear Spectroscopy.

Research Project

Project/Area Number 19H02793
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35030:Organic functional materials-related
Research InstitutionChiba University (2020-2021)
National Institute of Advanced Industrial Science and Technology (2019)

Principal Investigator

Miyamae Takayuki  千葉大学, 大学院工学研究院, 教授 (80358134)

Co-Investigator(Kenkyū-buntansha) 佐藤 友哉  東京理科大学, 理工学部物理学科, 助教 (80836370)
赤池 幸紀  国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (90581695)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Keywords非線形分光 / 界面・表面 / 有機EL / 有機トランジスタ / 有機デバイス / オペランド計測 / 界面 / 電荷蓄積 / 和周波発生 / イメージング / 電荷輸送 / 分子配向 / 表面・界面
Outline of Research at the Start

有機デバイス内部の分子配向と電荷蓄積・輸送挙動、素子特性との関係を定量的に解明することは有機エレクトロニクスの根幹をなす重要課題である。本研究は、有機デバイスに対して、電界誘起2重共鳴SFG法により、素子駆動時の電荷注入により生成される分子種を同定し、電荷挙動と分子配向との相関を定量的に解明することを目的とする。電界誘起SFG法により、実素子中の分子配向が関わる分子内、分子間伝導の素子特性への関連を明らかにする。さらに電気測定と電界誘起SFG測定を組み合わせることで、素子に電圧印加した際の注入電荷量と電荷蓄積との関係を定量的に解析し、デバイスの動的な界面電荷輸送特性の全容を解明する。

Outline of Final Research Achievements

This study aims to clarify the behavior of charge generated by charge injection when driving OLEDs and organic transistors using the electric field-induced double resonance SFG technique for the elucidation of the relationship between molecular orientation, charge accumulation and transport behavior, and device characteristics in organic devices.
We have succeeded in observing the charge accumulation state in OLEDs as spectral changes and time responses, and have discussed its relation to the luminance decay and the lifetime of the OLED devices. We have also succeeded in visualizing the charge accumulation behavior at the interface during driving of the devices, and have succeeded in visualizing the peculiar electric field behavior near the electrode.

Academic Significance and Societal Importance of the Research Achievements

有機デバイスでは、注入された電荷挙動いによりその特性が決まる。この注入電荷は異種材料の界面で蓄積や移動を行うため、界面で電荷がどのようにふるまっているのかを非破壊で調べることは極めて有用であったが、有効な手法がなかった。本研究は、SFG分光を用いて、他の手法では見ることができなかった有機デバイス界面での電荷の蓄積、輸送挙動をスペクトル変化としてとらえることを目指いしており、電荷の蓄積挙動とSFG信号の変調挙動が同調していることを突き止め、デバイス内の界面電荷挙動を非破壊で計測できた。さらに有機ELの劣化挙動について、界面の電荷蓄積が関与していることを示唆するなど、学術的にも有用な知見を得た。

Report

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

    (31 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 2 results) Presentation (18 results) (of which Int'l Joint Research: 4 results,  Invited: 11 results)

  • [Int'l Joint Research] University of Houston(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Houston(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Evaluation of the Molecular Conformation of Surface Alkyl Chains of Alkylsilane-Derived Hybrid Films Using Sum-Frequency Generation Spectroscopy2022

    • Author(s)
      Mizuno Rika、Urata Chihiro、Watanabe Ken、Hozumi Atsushi、Miyamae Takayuki
    • Journal Title

      Solids

      Volume: 3 Issue: 1 Pages: 147-154

    • DOI

      10.3390/solids3010010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] オペランド和周波分光による有機デバイス界面の電荷挙動2022

    • Author(s)
      宮前孝行
    • Journal Title

      レーザー研究

      Volume: 1 Pages: 17-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Operando sum‐frequency generation spectroscopy of high‐efficiency OLEDs for probing the charge carrier behavior2021

    • Author(s)
      Miyamae Takayuki、Sato Tomoya
    • Journal Title

      Journal of the Society for Information Display

      Volume: 30 Issue: 1 Pages: 3-14

    • DOI

      10.1002/jsid.1076

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Chemical Functionality in the Adhesion of Aluminum and Isotactic Polypropylene2021

    • Author(s)
      Liu Yida、Shigemoto Yuri、Hanada Takeshi、Miyamae Takayuki、Kawasaki Kazunori、Horiuchi Shin
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 13 Issue: 9 Pages: 11497-11506

    • DOI

      10.1021/acsami.0c22988

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 非線形分光による表面・界面分光分析2021

    • Author(s)
      宮前孝行
    • Journal Title

      ぶんせき

      Volume: 8 Pages: 364-371

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 和周波分光を用いたオペランド計測2021

    • Author(s)
      宮前孝行
    • Journal Title

      計測と制御

      Volume: 3 Pages: 202-206

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 和周波分光を用いたオペランド界面計測2021

    • Author(s)
      宮前孝行
    • Journal Title

      計測と制御

      Volume: 60 Pages: 202-206

    • NAID

      130007999975

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct imaging of electric field behavior in 2,7-diphenyl[1]benzothieno[3,2-b][1]benzothiophene organic field-effect transistors by sum-frequency generation imaging microscopy2021

    • Author(s)
      Katagiri Chiho、Miyamae Takayuki、Li Hao、Yang Fangyuan、Baldelli Steven
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 23 Issue: 8 Pages: 4944-4950

    • DOI

      10.1039/d0cp06407f

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relationship between the surface structure of the gate insulator and the performance of organic thin-film transistors2020

    • Author(s)
      Katagiri Chiho、Akaike Kouki、Miyamae Takayuki
    • Journal Title

      Organic Electronics

      Volume: 86 Pages: 105928-105928

    • DOI

      10.1016/j.orgel.2020.105928

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct observations of the charge behavior of a high-efficiency blue organic light-emitting diode under operating conditions using electric-field-induced doubly resonant sum-frequency-generation vibrational spectroscopy2019

    • Author(s)
      T. Sato, T. Miyamae, H. Ohata, T. Tsutsui
    • Journal Title

      Organic Electronics,

      Volume: 74 Pages: 118-125

    • DOI

      10.1016/j.orgel.2019.07.008

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evidence of chemical-bond formation at the interface between an epoxy polymer and an isocyanate primer2019

    • Author(s)
      Sensui Kazuhiro、Tarui Taishi、Miyamae Takayuki、Sato Chiaki
    • Journal Title

      Chemical Communications

      Volume: 55 Issue: 98 Pages: 14833-14836

    • DOI

      10.1039/c9cc05911c

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 和周波発生分光法によるOFETのゲートバイアスストレスの観測2022

    • Author(s)
      大橋直弥, 磯邉岳晃, 田中有弥, 石井久夫, 宮前孝行
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Operando Analyses of Organic Devices by Sum-Frequency Generation Spectroscopy2021

    • Author(s)
      Takayuki Miyamae
    • Organizer
      The Korean Physics Society Spring Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 和周波分光による表面・界面分光分析2021

    • Author(s)
      宮前 孝行
    • Organizer
      応用物理学会M&BE6月研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 和周波分光による界面分析2021

    • Author(s)
      宮前 孝行
    • Organizer
      表面分析研究会第56回研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 有機EL素子における実効的な正孔移動度の直接評価-配向分極に由来する電荷蓄積を利用したMIS-CELIV法の適用-2021

    • Author(s)
      佐藤友哉, 片桐千帆, 宮前孝行
    • Organizer
      有機EL討論会第32回例会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 電界誘起二重共鳴和周波分光によるオペランドデバイス計測2021

    • Author(s)
      宮前 孝行
    • Organizer
      応用物理学会M&BE9月研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 電界誘起SFG分光法による駆動中OFETの電荷蓄積の観測2021

    • Author(s)
      大橋直弥,田中有弥,石井久夫,宮前孝行
    • Organizer
      2021年日本表面真空学会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 和周波分光による有機界面のオペランド計測2021

    • Author(s)
      宮前 孝行
    • Organizer
      レーザー学会第41回年次大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 和周波分光イメージングによるDPh-BTBT薄膜トランジスタの電界挙動2020

    • Author(s)
      片桐 千帆, 宮前 孝行, Hao Li, Fangyang Yang, Steven Baldelli
    • Organizer
      2020年応用物理学会秋季講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 有機薄膜トランジスタにおけるSAM絶縁膜の表面構造が素子特性に与える影響2020

    • Author(s)
      片桐 千帆, 赤池 幸紀, 宮前 孝行
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 和周波分光による接着接合界面の解析2020

    • Author(s)
      宮前 孝行
    • Organizer
      接着学会構造接着精密接着研究会第1回研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 和周波発生(SFG)分光による材料の表面・界面分析2020

    • Author(s)
      宮前 孝行
    • Organizer
      第10回 CSJ化学フェスタ2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Operando Sum-Frequency Generation Spectroscopy of High-Efficiency OLEDs for Probing theCharge Carrier Activity2020

    • Author(s)
      Takayuki Miyamae
    • Organizer
      The 27th International Display Workshops (IDW'20)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 有機半導体ヘテロ接合の和周波発生分光2020

    • Author(s)
      赤池幸紀、片桐千帆、下位幸弘、宮前孝行
    • Organizer
      第67 回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 和周波発生分光イメージング測定を用いたDPh-BTBT薄膜トランジスタの電界挙動観測2020

    • Author(s)
      片桐千帆、宮前孝行、L. Hao, F. Yang, S. Baldelli
    • Organizer
      第67 回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Carrier Behavior in OLEDs under operation by Electric-Field-Induced Doubly Resonant SFG Spectroscopy2019

    • Author(s)
      Takayuki Miyamae
    • Organizer
      The 13rd Japan-China Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct probing of the charge carrier behavior and degradation analysis in blue-OLEDs using electric-field induced sum-frequency generation vibrational spectroscopy2019

    • Author(s)
      Takayuki Miyamae
    • Organizer
      2019 International Meeting on Information Display
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 和周波発生分光法による有機高分子トランジスタの電荷挙動の観測2019

    • Author(s)
      片桐千帆、赤池幸紀、宮前孝行
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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