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Development of small AC voltage superimposed displacement current measurement for light-emitting electrochemical cell

Research Project

Project/Area Number 17K17640
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Device related chemistry
Electron device/Electronic equipment
Research InstitutionChiba University

Principal Investigator

Tanaka Yuya  千葉大学, 先進科学センター, 助教 (90780065)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords電気化学発光セル / 変位電流評価法 / インピーダンス分光 / 電気二重層 / イオン液体 / モジュラス / 有機半導体 / 有機発光ダイオード / 変位電流測定 / 電荷注入 / 微小電場重畳型変位電流評価法 / 電子伝導 / イオン伝導 / 電気測定 / 電子デバイス・機器 / 電子・電気材料 / 半導体物性 / 表面・界面物性 / 物性実験
Outline of Final Research Achievements

To deeply understand operation mechanism of light-emitting electrochemical cells (LECs) and put them into practical use, evaluation of dynamics of carriers such as charges and ions is highly required. In this study, by combining displacement current measurement (DCM), which can observe carrier dynamics, and impedance spectroscopy (IS), which enables quantitative analysis of impedance (Z), we developed small AC voltage superimposed DCM (AC-DCM). The AC-DCM successfully separated Z in forward and reverse scans, and we found that Z in the forward scan is larger. These results suggest that AC-DCM is a powerful tool to observe the dynamics of carriers in LEC.

Academic Significance and Societal Importance of the Research Achievements

電気化学発光セル(LEC)の動作機構を解明するためには,素子内の電荷やイオンといったキャリアの動的な挙動と,それに由来するインピーダンスを定量的に評価する必要がある.そこで本研究ではこれを可能にする新しい評価手法を提案した.その結果LECに印加する電圧を増加させた場合と減少させた場合とでは,キャリアの挙動が異なることを明らかにした.本手法は様々なデバイスに対しても有力な評価手法であるといえる.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (21 results)

All 2019 2018 2017 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results) Remarks (2 results)

  • [Journal Article] Influence of Polarity of Polarization Charge Induced by Spontaneous Orientation of Polar Molecules on Electron Injection in Organic Semiconductor Devices2019

    • Author(s)
      TANAKA Yuya、MAKINO Takahiro、ISHII Hisao
    • Journal Title

      IEICE Transactions on Electronics

      Volume: E102.C Issue: 2 Pages: 172-175

    • DOI

      10.1587/transele.2018OMS0014

    • NAID

      130007586753

    • ISSN
      0916-8524, 1745-1353
    • Year and Date
      2019-02-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gap States of a Polyethylene Model Oligomer Observed by Using High-Sensitivity Ultraviolet Photoelectron Spectroscopy2019

    • Author(s)
      YAMAGUCHI Yuki、SHIMIZU Kohei、MATSUZAKI Atsushi、SANO Daisuke、SATO Tomoya、TANAKA Yuya、ISHII Hisao
    • Journal Title

      IEICE Transactions on Electronics

      Volume: E102.C Issue: 2 Pages: 168-171

    • DOI

      10.1587/transele.2018OMS0008

    • NAID

      130007586586

    • ISSN
      0916-8524, 1745-1353
    • Year and Date
      2019-02-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Direct observation of charged state in C60-based field-effect transistor using operando photoelectron yield spectroscopy2018

    • Author(s)
      Tanaka Yuya、Ikegami Keitaro、Maruyama Taichi、Kinjo Hiroumi、Ishii Hisao
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 8 Pages: 081601-081601

    • DOI

      10.7567/apex.11.081601

    • NAID

      210000136300

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 三端子変位電流評価法による有機トランジスタの動作機構解析2018

    • Author(s)
      田中有弥,石井久夫
    • Journal Title

      応用物理学会 有機分子・バイオエレクトロニクス分科会会誌

      Volume: 29 Pages: 80-83

    • Related Report
      2018 Research-status Report
  • [Journal Article] Negative capacitance in an organic solar cell observed by displacement current measurement2017

    • Author(s)
      Shimizu Koji、Tanaka Yuya、Noguchi Yutaka、Ishii Hisao
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 924 Pages: 012012-012012

    • DOI

      10.1088/1742-6596/924/1/012012

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Displacement current measurement using a combined waveform for organic devices2019

    • Author(s)
      Yuya Tanaka, Taichi Hiraga, Hokuto Hamada, Hisao Ishii
    • Organizer
      EMN Barcelona Meeting on Semiconductor
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Displacement current measurement of organic semiconductor devices using a combined waveform2019

    • Author(s)
      Yuya Tanaka, Taichi Hiraga, Hokuto Hamada, Hisao Ishii
    • Organizer
      CEMS Topical Meeting on Organic Photoelectronics: Theory, Materials, Interfaces, and spectroscopy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Orientation polarization of organic molecules on PEDOT:PSS treated by UV/O3: Internal potential distribution and device properties of organic light-emitting diodes2019

    • Author(s)
      Hokuto Hmada, Yuya Tanaka, Hisao Ishii
    • Organizer
      CEMS Topical Meeting on Organic Photoelectronics: Theory, Materials, Interfaces, and spectroscopy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 1.微小正弦波重畳型変位電流評価法の提案と電気化学発光セルの評価2019

    • Author(s)
      平賀太一,田中有弥,石井久夫
    • Organizer
      「有機EL討論会」第29回例会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 微小AC電圧重畳型変位電流評価法による有機発光ダイオードの電荷注入・放出過程の評価2019

    • Author(s)
      田中有弥,平賀太一,濱田北斗,石井久夫
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] UV/O3処理を施したPEDOT:PSS上の有機材料の配向分極と有機EL素子のデバイス特性2019

    • Author(s)
      濵田北斗,田中有弥, 石井久夫
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] UV照射したバッファ層PEDOT:PSS上の有機材料の自発配向と 有機EL素子の電気特性の相関2019

    • Author(s)
      濵田北斗, 田中有弥, 石井久夫
    • Organizer
      第14回有機デバイス・物性院生研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Impact of UV/ozone treatment for PEDOT:PSS film on charge accumulation in organic light-emitting diodes investigated by displacement current measurement2018

    • Author(s)
      Yuya Tanaka, Koki Serizawa, Hokuto Hamada, Kavindra Maduwantha, Kaveenga Rasika Koswattage, Hisao Ishii
    • Organizer
      19th International Workshop on Inorganic and Organic Electroluminescence & 2018 International Conference on the Science and Technology of Emissive Displays and Lighting (EL 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 変位電流評価法で調べたPEDOT:PSSバッファ層へのUVオゾン処理効果の起源2018

    • Author(s)
      芹澤洸希,新藤駿汰,田中有弥,石井久夫
    • Organizer
      「有機EL討論会」第26回例会
    • Related Report
      2018 Research-status Report
  • [Presentation] 三端子変位電流評価法による有機トランジスタの動作機構解析2018

    • Author(s)
      田中有弥,石井久夫
    • Organizer
      応用物理学会有機分子・バイオエレクトロニクス分科会研究会「有機分子・バイオエレクトロニクスの未来を観る」
    • Related Report
      2018 Research-status Report
  • [Presentation] 田中有弥,山本紘平,野口裕,石井久夫2018

    • Author(s)
      1.三端子変位電流評価法によるペンタセントランジスタの劣化機構解析:トラップ形成速度定数の評価
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Yuya Tanaka and Hisao Ishii2017

    • Author(s)
      Degradation process of pentacene-based transistors observed by three-terminal displacement current measurement
    • Organizer
      The second symposium of Chiral Molecular Science and Technology in Chiba University ‘-Advanced Materials Science, Biology & Nanophotonics in Chiba-’
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Yuya Tanaka, Kohei Yamamoto, Yutaka Noguchi, Hisao Ishii2017

    • Author(s)
      Three-terminal capacitance-voltage measurements for pentacene-based transistors: Evaluations for validity of gradual channel approximation model and degradation process
    • Organizer
      14th European Conference on Molecular Electronics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Yuya Tanaka, Kohei Yamamoto, Yutaka Noguchi, Hisao Ishii2017

    • Author(s)
      7.Rate constant of trap formation in pentacene-based transistors studied by three-terminal displacement current measurement
    • Organizer
      9th International Conference on Molecular Electronics and Bioelectronics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/yt85

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report
  • [Remarks] 千葉大学研究者情報データベース

    • URL

      http://curt.chiba-u.jp/search/ResearcherDetail.aspx?resNo=3688

    • Related Report
      2018 Research-status Report 2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-03-11  

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