• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2015 Fiscal Year Annual Research Report

偏光局在プラズモン共鳴を用いた有機電界発光素子の試作

Research Project

Project/Area Number 26630160
Research InstitutionOsaka University

Principal Investigator

桑原 裕司  大阪大学, 工学(系)研究科(研究院), 教授 (00283721)

Project Period (FY) 2014-04-01 – 2016-03-31
Keywords有機EL素子 / 円偏光制御
Outline of Annual Research Achievements

本研究の目的は、プラズモン共鳴効果を利用した、有機電界円偏光発光素子を試作することにある。キラル分子を被覆した金属ナノ粒子を従来の有機電界発光素子に挿入することにより、光学不活性な素子からの発光を、偏光したプラズモンの強い偏光電場により偏光・増強発光させることにある。局在偏光プラズモンとの共鳴により、偏光発光を実現する。
最終年度は、前年度までに実現した、キラル有機材料からの円偏光発光検出を受けて、キラル分子によるプラズモン円偏光発光の強度及び偏光度の制御の可能性を評価した。実験はキラル分子被膜金属表面上からのトンネル電流発光分析を行い、金属上に直接キラル分子を被膜した試料、及び金属表面にAl2O3、NaCl等の絶縁層(バッファー層)を挟んだキラル分子被膜試料を比較した。その結果、キラルPTCDI分子では、バッファー層として挟んだものよりも、直接被膜表面からの発光において光学非対称性が増強することを確認した。一方、ヘリセン分子系においては、C60をバッファー層として使用したときのみ発光が起こり、分子によっては金属微粒子の絶縁被膜を検討する必要があることを示した。
実用的なフレキシブルかつ安価な発光素子を実現するための、グラフェン電極の作製を試みた。フレーク状の酸化グラフェンをシート化しさらに加熱還元することによって得られた還元グラフェンシートをラマン散乱分光、XPS及び局所導電性計測により評価を行った。その結果、酸化グラフェンを700℃で熱還元した還元グラフェンでは、ラマン分光では酸化グラフェンの性質を持ちつつも、導電性が4桁程度向上した(1~102 S/cm)。局所伝導評価では、フレーク間抵抗が全体の抵抗値を支配していることが分かり、実デバイスでは、できるだけドメインの少ない、大面積グラフェンシートが必要であるこという知見を得た。

  • Research Products

    (27 results)

All 2016 2015 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (22 results) (of which Int'l Joint Research: 12 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Nanoscale analysis of multiwalled carbon nanotube by tip-enhanced Raman spectroscopy2016

    • Author(s)
      Songpol Chaunchaiyakul, Takeshi Yano, Kamonchanok Khoklang,Pawel Krukowski,Megumi Akai-Kasaya,Akira Saito,Yuji Kuwahara
    • Journal Title

      Carbon

      Volume: 99 Pages: 642-648

    • DOI

      10.1016/j.carbon.2015.12.090

    • Peer Reviewed / Open Access
  • [Journal Article] Detection of Light Emission from PTCDI Molecules Adsorbed on Au(111) and NiAl(110) Surfaces Induced by a Scanning Tunneling Microscope2016

    • Author(s)
      Pawel Krukowski,Takuro Tsuzuki, Yuto Minagawa,Nami Yajima, Songpol Chaunchaiyakul,Megumi Akai-Kasaya, Akira Saito, Yusuke Miyake, Mitsuhiro Katayama, and Yuji Kuwahara
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 120 Pages: 3964-3977

    • DOI

      10.1021/acs.jpcc.5b12313

    • Peer Reviewed / Open Access
  • [Journal Article] Coulomb-blockade transport in two-dimensional conductive polymer monolayer2015

    • Author(s)
      M. Akai-Kasaya, Y. Okuaki, S. Nagano, T. Mitani and Y. Kuwahara,
    • Journal Title

      Physical Review Letters

      Volume: 115 Pages: 196801-196802

    • DOI

      10.1103/PhysRevLett.115.196801

    • Peer Reviewed / Open Access
  • [Journal Article] Self-Assembly Formation of M-Type Enantiomer of 2,13-Bis(hydroxymethyl)[7]-thiaheterohelicene Molecules on Au(111) Surface Investigated by STM/CITS2015

    • Author(s)
      Songpol Chaunchaiyakul,Pawel Krukowski,Takuro Tsuzuki,Yuto Minagawa,Megumi Akai-Kasaya,Akira Saito,Hideji Osuga,Yuji Kuwahara
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 119 (37) Pages: 21434-21442

    • DOI

      10.1021/acs.jpcc.5b04961

    • Peer Reviewed / Open Access
  • [Presentation] 単分子吸着によって発現する カーボンナノチュブ素子におけるランダムテレグラフシグナルノイズ2016

    • Author(s)
      藤井逸人,Agung Setiadi,赤井 恵,葛西誠也,金井康,松本和彦,桑原裕司
    • Organizer
      2016年第63回応用物理学会春季学術講演会
    • Place of Presentation
      東京工業大学大岡山キャンパス 東京
    • Year and Date
      2016-03-21
  • [Presentation] PEDOT:PSSワイヤに発現する低温非線形電気伝導2016

    • Author(s)
      小川尚紘, 赤井恵, 齋藤彰, 桑原裕司
    • Organizer
      2016年第63回応用物理学会春季学術講演会
    • Place of Presentation
      東京工業大学大岡山キャンパス 東京
    • Year and Date
      2016-03-21
  • [Presentation] TERS計測による多層カーボンナノチューブの2D-bandピーク強度の局所依存性評価2016

    • Author(s)
      矢野剛史, Sonpol Chaunchaiyakul, Pawel Krukowski, 赤井恵, 齋藤彰, 桑原裕司
    • Organizer
      2016年第63回応用物理学会春季学術講演会
    • Place of Presentation
      東京工業大学大岡山キャンパス 東京
    • Year and Date
      2016-03-21
  • [Presentation] Nanoscale Analysis of Interwall Interaction in a Multiwalled Carbon Nanotube by Tip-Enhanced Raman Spectroscopy2016

    • Author(s)
      Songpol Chaunchaiyakul, Takeshi Yano, Kamonchanok Khoklang, Pawel Krukowski, MegumiAkai-Kasaya, Akira Saito, Yuji Kuwahara
    • Organizer
      APS March Meeting 2016
    • Place of Presentation
      Baltimore Convention Center, Baltimore MD,USA
    • Year and Date
      2016-03-14 – 2016-03-18
    • Int'l Joint Research
  • [Presentation] Coulomb-blockade in low-dimensional organic conductive polymer2016

    • Author(s)
      M Akai-Kasaya, Y Okuaki, S Nagano1, T. Mitani2 and Y Kuwahara
    • Organizer
      Symposium on Surface Science (3S*16)
    • Place of Presentation
      St. Christoph in St. Anton am Arlberg, Austria
    • Year and Date
      2016-02-21 – 2016-02-27
    • Int'l Joint Research
  • [Presentation] Molecular Characterization using Current Noise Measurement of Carbon Nanotube Device2016

    • Author(s)
      M. Akai-Kasaya, A.Setiadi, H. Fujii, S. Kasai, Y. Kanai, K. Matsumoto, Y. Kuwahara
    • Organizer
      The Symposium on Surface and Nano Science 2016 (SSNS’16)
    • Place of Presentation
      Furano Hokkaido Japan
    • Year and Date
      2016-01-13 – 2016-01-17
    • Int'l Joint Research
  • [Presentation] Molecular Characterization using Current Noise Measurement of Carbon Nanotubes Device2015

    • Author(s)
      Agung Setiadi, Hayato Fujii, Megumi Akai-Kasaya, Seiya Kasai, Yasushi Kanai, Kazuhiko Matsumoto, Yuji Kuwahara
    • Organizer
      Pacifichem 2015
    • Place of Presentation
      Honolulu, Hawaii,USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Coulomb-blockade transport in low-dimensional conjugated conductive polymers2015

    • Author(s)
      Megumi Akai-Kasaya1, S Nagano2, T. Mitani3 and Y Kuwahara1
    • Organizer
      Pacifichem 2015
    • Place of Presentation
      Honolulu, Hawaii,USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Nanoscale Evaluation of Optical Activity for Chiral molecules Studied by STM-LE Technique2015

    • Author(s)
      Y. Kuwahara, A. Fujiki, A. Saito, M. Akai-Kasaya
    • Organizer
      The International Symposium on “Recent Trends in Analysis Techniques for Functional Materials and Devices
    • Place of Presentation
      Osaka University, Japan
    • Year and Date
      2015-12-03 – 2015-12-04
    • Int'l Joint Research / Invited
  • [Presentation] Self-assembly Formation of M-type Enantiomer of 2,13-Bis(hydroxymethyl)[7]-thiaheterohelicene Molecules on Au(111) and Ag(111) surfaces2015

    • Author(s)
      Nami Yajima, Yuto Minagawa, Pawel Krukowski, Hideji Osuga, Yuji Kuwahara
    • Organizer
      表面・界面スペクトロスコピー2015
    • Place of Presentation
      国立女性教育会館 埼玉
    • Year and Date
      2015-11-27
  • [Presentation] Investigation of Light Emission from (S)-PTCDI Molecules Adsorbed on Au(111) and NiAl(110) Surfaces by STM-LE2015

    • Author(s)
      Pawel Krukowski, Takuro Tsuzuki, Yuto Minagawa, Nami Yajima, Songpol Chaunchaiyakul, Megumi Akai-Kasaya, Akira Saito, Mitsuhiro Katayama, Yuji Kuwahara
    • Organizer
      表面・界面スペクトロスコピー2015
    • Place of Presentation
      国立女性教育会館 埼玉
    • Year and Date
      2015-11-27
  • [Presentation] Sensitivity of 2D-band to Interlayer Interaction of Multi-walled Carbon Nanotubes by Tip-enhanced Raman Spectroscopy2015

    • Author(s)
      Takeshi Yano, Songpol Chaunchaiyakul, Kamonchanok Khoklang, Pawel Krukowski, Megumi Akai-Kasaya, Akira Saito, Yuji Kuwahara
    • Organizer
      表面・界面スペクトロスコピー2015
    • Place of Presentation
      国立女性教育会館 埼玉
    • Year and Date
      2015-11-27
  • [Presentation] 分子雑音を利用したカーボンナノチューブ確率共鳴素子に関する研究2015

    • Author(s)
      藤井逸人,Agung Setiadi,赤井 恵,葛西誠也,金井康,松本和彦,桑原裕司
    • Organizer
      関西薄膜表面物理セミナー2015
    • Place of Presentation
      グリーンビレッジ交野 大阪
    • Year and Date
      2015-11-20
  • [Presentation] The 2D-band Raman Modes of Carbon Nanotubes in Tip-Enhanced Raman Spectroscopy2015

    • Author(s)
      Songpol Chaunchaiyakul, Takeshi Yano, Kamonchanok Khoklang, Pawel Krukowski, MegumiAkai-Kasaya, Akira Saito, Yuji Kuwahara
    • Organizer
      28th International Microprocesses and Nanotehnology Conference
    • Place of Presentation
      Toyama International Conference Center, Toyama, Japan
    • Year and Date
      2015-11-11 – 2015-11-13
    • Int'l Joint Research
  • [Presentation] Correlation of the 2D-band and MWNT Walls by TERS2015

    • Author(s)
      Songpol Chaunchaiyakul, Takeshi Yano, Kamonchanok Khoklang, Pawel Krukowski, MegumiAkai-Kasaya, Akira Saito, Yuji Kuwahara
    • Organizer
      5th International Conferenceon Tip-Enanced Raman Spectroscopy
    • Place of Presentation
      Nakanoshima Center, Osaka Univ.,Japan
    • Year and Date
      2015-10-29 – 2015-10-30
    • Int'l Joint Research
  • [Presentation] 分子雑音を利用したカーボンナノチューブ確率共鳴素子に関する研究2015

    • Author(s)
      藤井逸人,Agung Setiadi,赤井 恵,桑原裕司
    • Organizer
      第6回分子アーキテクトニクス研究会
    • Place of Presentation
      京都大学 京都
    • Year and Date
      2015-10-23
  • [Presentation] Molecular Characterization using Current Noise Measurement of Carbon Nanotubes Device at Room Temperature2015

    • Author(s)
      Agung Setiadi, Hayato Fujii, Megumi Akai-Kasaya, Seiya Kasai, Yasushi Kanai, Kazuhiko Matsumoto, Yuji Kuwahara
    • Organizer
      第6回分子アーキテクトニクス研究会
    • Place of Presentation
      京都大学 京都
    • Year and Date
      2015-10-23
  • [Presentation] Study of the 2D-band Raman modes of CNTs by TERS2015

    • Author(s)
      Songpol Chaunchaiyakul, Takeshi Yano, Kamonchanok Khoklang, Pawel Krukowski, MegumiAkai-Kasaya, Akira Saito, Yuji Kuwahara
    • Organizer
      2015年度秋季精密工学会
    • Place of Presentation
      東北大学 宮城
    • Year and Date
      2015-09-05 – 2015-09-06
  • [Presentation] Molecular characterization using current noise measurement of carbon nanotube device2015

    • Author(s)
      M. Akai-Kasaya, A.Setiadi, H. Fujii, S. Kasai, Y. Kanai, K. Matsumoto, Y. Kuwahara
    • Organizer
      13th European Conference on Molecular Electronics (ECME)
    • Place of Presentation
      Strasbourg, France
    • Year and Date
      2015-09-01 – 2015-09-05
    • Int'l Joint Research
  • [Presentation] Molecular Characterization using Current Noise Measurement of Carbon Nanotubes Device at Room Temperature2015

    • Author(s)
      Agung Setiadi, Hayato Fujii, Megumi Akai-Kasaya, Seiya Kasai, Yasushi Kanai, Kazuhiko Matsumoto, Yuji Kuwahara
    • Organizer
      International workshop on molecular architectonics 2015
    • Place of Presentation
      Shiretoko Grand Hotel "Kita-Kobushi", Shiretoko, Japan
    • Year and Date
      2015-08-03 – 2015-08-06
    • Int'l Joint Research
  • [Presentation] Molecular noise sources incorporated into carbo nanotube circuits aiming the emergence of collective stochastic rsonance2015

    • Author(s)
      Megumi Akai-Kasaya, Agung Setiadi, Hayato Fujii, Seiya Kasai, Yasushi Kanai, Kazuhiko Matsumoto, Yuji Kuwahara
    • Organizer
      International workshop on molecular architectonics 2015
    • Place of Presentation
      Shiretoko Grand Hotel "Kita-Kobushi", Shiretoko, Japan
    • Year and Date
      2015-08-03 – 2015-08-06
    • Int'l Joint Research
  • [Presentation] Nanoscale Investigation on Chiral Molecular systems2015

    • Author(s)
      Y. Kuwahara, A. Fujiki, S. Chaunchaiyakul , P. Krukowski, H. Osuga
    • Organizer
      the Collaborative Conference on 3D and Materials Research (CC3DMR) 2015
    • Place of Presentation
      BEXCO, Busan, South Korea
    • Year and Date
      2015-06-15 – 2015-06-19
    • Int'l Joint Research / Invited
  • [Remarks] Kuwahara Laboratory

    • URL

      http://www-ss.prec.eng.osaka-u.ac.jp

URL: 

Published: 2017-01-06  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi