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Measurements of exciton transfer between organic single crystals of different materials

Research Project

Project/Area Number 25610084
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionTohoku University

Principal Investigator

SHIMOTANI Hidekazu  東北大学, 理学(系)研究科(研究院), 准教授 (60418613)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords有機半導体 / 有機トランジスタ / 分子性固体
Outline of Final Research Achievements

Measurements of exciton diffusion length in tetracene single crystals revealed that the exciton diffusion length is longer than typical thickness of the tetracene single crystals. We successfully developed functionally separated single-crystal organic light-emitting field-effect transistor using the property. The transistor consists of two different organic semiconductor single crystals, which are laminated on a dielectric layer forming bilayer structure. Excitons generated by carrier injection to the bottom semiconductor crystal, which has higher carrier mobility, were transferred to the top semiconductor crystal, which have higher fluorescence efficiency, and light emission from the top crystal was observed.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (11 results)

All 2015 2014

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (5 results)

  • [Journal Article] Systematic Study of the Electronic States in Electron-Doped Polyacenes2014

    • Author(s)
      Q. T. N. Phan, S. Heguri, Y. Tanabe, H. Shimotani and K. Tanigaki
    • Journal Title

      European Journal of Inorganic Chemistry

      Volume: 2014 Issue: 24 Pages: 4033-4038

    • DOI

      10.1002/ejic.201402381

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Systematic studies on anharmonicity of rattling phonons in type-I clathrates by low-temperature heat capacity measurements2014

    • Author(s)
      J. Wu, J. T. Xu, D. Prananto, H. Shimotani, Y. Tanabe, S. Heguri and K. Tanigaki
    • Journal Title

      Physical Review B

      Volume: 89 Issue: 21

    • DOI

      10.1103/physrevb.89.214301

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Continuous Band-Filling Control and One-Dimensional Transport in Metallic and Semiconducting Carbon Nanotube Tangled Films2014

    • Author(s)
      H. Shimotani, S. Tsuda, H.T. Yuan, Y. Yomogida, R. Moriya, Taishi Takenobu, K. Yanagi and Y. Iwasa
    • Journal Title

      Advanced Functional Materials

      Volume: 24 Issue: 22 Pages: 3305-3311

    • DOI

      10.1002/adfm.201303566

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Tuning of the ground state in electron doped anthracene2014

    • Author(s)
      Q. T. N. Phan, S. Heguri, Y. Tanabe, H. Shimotani, T. Nakano, Y. Nozue and K. Tanigaki
    • Journal Title

      Dalton Transactions

      Volume: 43 Issue: 26 Pages: 10040-10045

    • DOI

      10.1039/c4dt00071d

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-Sensitivity Photodetectors Based on Multilayer GaTe Flakes2014

    • Author(s)
      F. Liu, H. Shimotani, H. Shang, T. Kanagasekaran, V. Zolyomi, N. Drummond, V. I. Falko and K. Tanigaki
    • Journal Title

      ACS NANO

      Volume: 8(1)巻 Issue: 1 Pages: 752-760

    • DOI

      10.1021/nn4054039

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electron and Hole Injection via Charge Transfer at the Topological Insulator Bi2-xSbxTe3-ySey-Organic Molecule Interface2014

    • Author(s)
      Y. Tanabe, K.K. Huynh, R. Nouchi, S. Heguri, G. Mu, J.T. Xu, H. Shimotani and K. Tanigaki
    • Journal Title

      J. Phys. Chem. C

      Volume: 118 Issue: 7 Pages: 3533-3538

    • DOI

      10.1021/jp409715s

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 有機単結晶FETの電子易動度の絶縁層修飾膜依存性2015

    • Author(s)
      下谷秀和, 小林昌太, 及川翔, 谷垣勝己
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学(東京)
    • Year and Date
      2015-03-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Control of Carrier Injection Barrier in Organic Thin-Film Transistors by Surface Modification of Dielectric Layer2014

    • Author(s)
      H. Shimotani, T. Kanagasekaran, S. Ikeda, H. Shang, R. Kumashiro, K. Tanigaki
    • Organizer
      2014 MRS Fall Meeting
    • Place of Presentation
      Boston(アメリカ)
    • Year and Date
      2014-12-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] 絶縁層表面修飾による有機薄膜トランジスタのキャリア注入障壁の変化2014

    • Author(s)
      下谷秀和,カナガセカラン サンガベル,谷垣勝己
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学(平塚市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Rubrene-Doped Tetracene Crystals with High Luminescent Efficiency Applied in Field-Effect Transistors2014

    • Author(s)
      Hui Shang,Kanagasekaran Thangavel,Fucai Liu,Shota Kobayashi,Hidekazu Shimotani,Katsumi Tanigaki
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学(平塚市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 有機薄膜単結晶BP2Tの超高速光学応答の励起波長依存性2014

    • Author(s)
      菅野美幸,澤田亮,尚慧,下谷秀和,谷垣勝己,吉澤雅幸
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学(平塚市)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2020-05-15  

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