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2015 Fiscal Year Annual Research Report

グラフェンにおける界面相互作用を用いた新規伝導性・反応性の探究

Research Project

Project/Area Number 25410088
Research InstitutionHosei University

Principal Investigator

高井 和之  法政大学, 生命科学部, 准教授 (80334514)

Project Period (FY) 2013-04-01 – 2016-03-31
Keywords酸化グラフェン / 反強磁性ダイマー / 水素吸着 / 磁気スイッチング / Brodie法
Outline of Annual Research Achievements

グラフェンに対して導入したさまざまな異種化学種との間の界面相互作用を精密に制御することにより,グラフェンの電子状態を変調し,新規な反応性,磁性,伝導性の発現を目的として研究を行い,以下の成果を達成した.
1)酸素含有官能基を持つグラフェン誘導体である酸化グラフェンを磁性金属を用いないBrodie法で合成し,静磁化率,電子スピン共鳴の評価を行った.さらに磁性不純物としてMnが含まれてしまう通常のHummers法で合成した酸化グラフェンについても過酸化水素などを用いた洗浄を施し,ICPによる評価によりMn不純物を完全に除去することできた.これらの試料について磁気的性質を比較したところ,スピン濃度や低温での磁化過程および高マイクロ波照射時の電子スピン共鳴信号の飽和挙動などが2つの試料で著しく異なることを見出し,合成法により酸化グラフェンの官能基構造が異なっていることを明らかした.
2)ナノダイヤモンド上に成長させたグラフェンに対して,酸素分子を導入した系におけるエッジ状態スピンと酸素分子スピンの特異な反強磁性ダイマーの形成について,極低温での電子スピン共鳴と静磁化率の測定結果を得て,詳細な解析を行い,第一原理計算の結果との比較を行ったところ,グラフェン端部位への酸素分子吸着に伴う電荷移動が特異な磁気スイッチング現象を生み出していることを明らかにし,論文に取りまとめたものを投稿中である.
3)グラフェン電界効果トランジスタ構造のチャネル部位に水素分子を吸着し,水素エッチングによるグラフェン表面吸着物のエッチング効果と同時にホールドープが進行することを明らかにした.

  • Research Products

    (40 results)

All 2016 2015 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (34 results) (of which Int'l Joint Research: 23 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] ヨッフェ物理工学研究所/サンクトペテルブルク情報機械光学研究大学(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      ヨッフェ物理工学研究所/サンクトペテルブルク情報機械光学研究大学
  • [Int'l Joint Research] 国立高磁場研究所(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      国立高磁場研究所
  • [Int'l Joint Research] ベングリオン大(イスラエル)

    • Country Name
      ISRAEL
    • Counterpart Institution
      ベングリオン大
  • [Journal Article] Structural analysis of polycrystalline graphene systems by Raman spectroscopy2015

    • Author(s)
      J. Soares, M. Oliveros, C. Garin, M. David, L. Martins, C. Almeida, E. Ferreira, K. Takai, T. Enoki, R. Paniago, A Malachias, A. Jorio, B. Archanjo, C. Achete, and L. Cancado
    • Journal Title

      Carbon

      Volume: 95 Pages: 646-652

    • DOI

      10.1016/j.carbon.2015.08.020

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetic studies of detonation nanodiamond with surface modified with gadolinium ions2015

    • Author(s)
      V.Yu Osipov, A. E. Aleksenskiy, K. Takai, and A. Ya. Vul'
    • Journal Title

      Physics of the Solid State

      Volume: 57 Pages: 2314-2319

    • DOI

      10.1134/S1063783415110268

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Host-Guest Interactions in Graphene2016

    • Author(s)
      Kazuyuki Takai
    • Organizer
      3rd International Graphene Forum
    • Place of Presentation
      Tsinghua University, Shenzhen, China
    • Year and Date
      2016-04-14 – 2016-04-16
    • Int'l Joint Research / Invited
  • [Presentation] グラフェン/電解質溶液の界面における電気化学相互作用2016

    • Author(s)
      鈴木 大輔,高井 和之
    • Organizer
      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, 東京
    • Year and Date
      2016-03-19 – 2016-03-22
  • [Presentation] Fluorination and annealing effects on magnetism and structure of nanodiamond2016

    • Author(s)
      Kenta Kogane, Hidekazu Touhara, Yoshiyuki Hattori, V. Yu. Osipov, N. Romanov and Kazuyuki Takai
    • Organizer
      The 50th Fullerenes-Nanotubes-Graphene General Symposium
    • Place of Presentation
      University of Tokyo, Bunkyo, Tokyo
    • Year and Date
      2016-02-20 – 2016-02-22
  • [Presentation] Evaluation of spin magnetism and chemical activity for graphene derivativescule2016

    • Author(s)
      Tomoki Yamashina, Takuya Isaka, Kentaro Tajima, Yoshiaki Matsuo, Kazuyuki Takai
    • Organizer
      The 50th Fullerenes-Nanotubes-Graphene General Symposium
    • Place of Presentation
      University of Tokyo, Bunkyo, Tokyo
    • Year and Date
      2016-02-20 – 2016-02-22
  • [Presentation] Host-Guest interactions between nanographene host and magnetic guest molecule2016

    • Author(s)
      Akira Suzuki, Kazuyuki Takai
    • Organizer
      The 50th Fullerenes-Nanotubes-Graphene General Symposium
    • Place of Presentation
      University of Tokyo, Bunkyo, Tokyo
    • Year and Date
      2016-02-20 – 2016-02-22
  • [Presentation] Electrochemical Interaction at the Interface between Graphene and Electrolyte2016

    • Author(s)
      Daisuke Suzuki, Kazuyuki Takai
    • Organizer
      The 50th Fullerenes-Nanotubes-Graphene General Symposium
    • Place of Presentation
      University of Tokyo, Bunkyo, Tokyo
    • Year and Date
      2016-02-20 – 2016-02-22
  • [Presentation] Evaluation of Graphene Oxide Catalyst regarding Organic reaction in Aqueous media2016

    • Author(s)
      Takuya Isaka, Tomoki Yamashina, Kentaro Tajima, Yutaka Ohta, Kazuyuki Takai
    • Organizer
      The 50th Fullerenes-Nanotubes-Graphene General Symposium
    • Place of Presentation
      University of Tokyo, Bunkyo, Tokyo
    • Year and Date
      2016-02-20 – 2016-02-22
  • [Presentation] Host-Guest interactions between nanographene host and magnetic guest molecule2016

    • Author(s)
      A. Suzuki, K. Takai
    • Organizer
      理研シンポジウム:ミュオン科学応用の最先端 理研RALミュオン施設25周年記念 Users Meeting
    • Place of Presentation
      理化学研究所, 和光, 埼玉
    • Year and Date
      2016-02-16
    • Int'l Joint Research
  • [Presentation] Molecular-based proximity effects in graphene2015

    • Author(s)
      K. Takai, T. Umehra, K. Nakamoto, A. Izumiyama
    • Organizer
      The International Chemical Congress of PACIFIC BASIN SOCIETIES 2015
    • Place of Presentation
      Hawaii Convention Center, Hnolulu, USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Tuning molecular adsorption kinetics in graphene by gate-bias voltage2015

    • Author(s)
      T. Umehara , K. Takai
    • Organizer
      The International Chemical Congress of PACIFIC BASIN SOCIETIES 2015
    • Place of Presentation
      Hawaii Convention Center, Hnolulu, USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Bromine adsorption effects on epritaxial graphene2015

    • Author(s)
      K. Nakamoto , K. Takai, T. Akatsu
    • Organizer
      The International Chemical Congress of PACIFIC BASIN SOCIETIES 2015
    • Place of Presentation
      Hawaii Convention Center, Hnolulu, USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Correlation between spin magnetism and chemical activity in graphene oxide / nanographene2015

    • Author(s)
      T. Yamashina, T. Isaka, K. Inoue, Y. Matsuo, K. Takai
    • Organizer
      The International Chemical Congress of PACIFIC BASIN SOCIETIES 2015
    • Place of Presentation
      Hawaii Convention Center, Hnolulu, USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Fluorination of Nanodiamond / Nanographene-Shell Structure2015

    • Author(s)
      Kenta Kogane, Hidekazu Touhara, Yoshiyuki Hattori, V. Yu. Osipov, N. Romanov and Kazuyuki Takai
    • Organizer
      The International Chemical Congress of PACIFIC BASIN SOCIETIES 2015
    • Place of Presentation
      Hawaii Convention Center, Hnolulu, USA
    • Year and Date
      2015-12-15 – 2015-12-20
    • Int'l Joint Research
  • [Presentation] Boron Doped Diamonds Produced at High Pressure with Metal Catalyst2015

    • Author(s)
      F. M. Shakhov, K. Takai, S.V. Kidalov, V. T. Lebedev, D. V. Shamshur, A. A. Krasilin, E. Lahderanta, A.Ya. Vul'
    • Organizer
      第 34 回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学, 小金井, 東京
    • Year and Date
      2015-12-09
  • [Presentation] グラフェンの近接効果における基板表面構造の影響2015

    • Author(s)
      泉山 彰里,高井和之
    • Organizer
      第 34 回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学, 小金井, 東京
    • Year and Date
      2015-12-09
  • [Presentation] グラフェンにおけるゲスト分子吸着速度のゲート電圧依存性2015

    • Author(s)
      梅原太一,高井和之
    • Organizer
      第 34 回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学, 小金井, 東京
    • Year and Date
      2015-12-09
  • [Presentation] グラフェン/電解質溶液の界面における電気化学相互作用の解明2015

    • Author(s)
      鈴木大輔,高井和之
    • Organizer
      第 34 回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学, 小金井, 東京
    • Year and Date
      2015-12-09
  • [Presentation] SiO2基板への Au イオン照射によるグラフェンへの影響2015

    • Author(s)
      岩渕倖己,西村 智朗,高井和之
    • Organizer
      第 34 回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学, 小金井, 東京
    • Year and Date
      2015-12-09
  • [Presentation] High resolution TEM and infrared absorption studies of commercial polycrystalline nanodiamonds with twinning boundaries2015

    • Author(s)
      N. M. Romanov, V. Yu. Osipov, J.-P. Boudou, T. Hayashi, K. Takai
    • Organizer
      12th International Conference Advanced Carbon NanoStructures
    • Place of Presentation
      St Petersburg Academic University, St. Petersburg, Russia
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Gate-bias modulation of charge-transfer rate in hydrazine-adsorbed graphene2015

    • Author(s)
      T. Umehara , K. Takai
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Magnetic interactions between nanographene host and guest molecules with localized d electron2015

    • Author(s)
      A.Suzuki , K. Takai
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Influence of the surface structure of substrate for proximity effect on Graphene2015

    • Author(s)
      A.Izumiyama , K. Takai
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Correlation between spin magnetism and catalytic activity in graphene oxide / nanographene2015

    • Author(s)
      Tomoki Yamashina, Takuya Isaka, Kadumi Inoue, Yoshiaki Matsuo, Kazuyuki Takai
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] A theoretical proof for electrically enhanced desorption of hydrogen chemisorbed on graphene2015

    • Author(s)
      Koichi Kusakabe, Gagus Ketut Sunnardianto, Naoki Morishita, Isao Maruyama, Kazuyuki Takai, Toshiaki Enoki
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Temperature dependence of momentum distribution in a correlated Dirac sea with the zero mode of a hydrogenated graphene vacancy2015

    • Author(s)
      Naoki Morishita, Gagus Ketut Sunnardianto, Koichi, Kusakabe, Isao Maruyama, Kazuyuki Takai, Toshiaki Enoki
    • Organizer
      The Sixteenth International conference on the Science and Application of Nanotubs (NT15)
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-29 – 2015-07-03
    • Int'l Joint Research
  • [Presentation] Fermi energy dependence of charge transfer kinetics in molecular adsorption on graphene2015

    • Author(s)
      T. Umehara , K. Takai
    • Organizer
      NT15 Satellite Symposia GSS15
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-28
    • Int'l Joint Research
  • [Presentation] Strong exchange scatterings of low-energy quasi-particles at the Dirac point by the zero mode of graphene2015

    • Author(s)
      Naoki Morishita, Gagus Ketut Sunnardianto, Koichi, Kusakabe, Isao Maruyama, Kazuyuki Takai, Toshiaki Enoki
    • Organizer
      NT15 Satellite Symposia GSS15
    • Place of Presentation
      Nagoya University, Nagoya, Japan
    • Year and Date
      2015-06-28
    • Int'l Joint Research
  • [Presentation] Boron Doped Diamonds Produced at High Pressure with Metal Catalyst2015

    • Author(s)
      F.M. Shakhov, K. Takai, S.V. Kidalov, V.T. Lebedev, D.V. Shamshur, A.A. Krasilin, E. Lahderanta and A.Ya. Vul’
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Host-Guest interactions on epitaxial graphene2015

    • Author(s)
      K. Nakamoto , T. Akatsu , K. Takai
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Effect of hydrazine adsorption for electron transport properties on graphene2015

    • Author(s)
      T. Umehara , K. Takai
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Effect of Thermal Annealing and Fluorination on the Structure and Magnetic properties of Nanodiamond2015

    • Author(s)
      Kenta Kogane, Hidekazu Touhara, Yoshiyuki Hattori, V. Yu. Osipov, N. Romanov and Kazuyuki Takai
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Influence of the surface structure of substrate for proximity effect on Graphene2015

    • Author(s)
      K. Takai, A. Izumiyama
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Elucidation of the Interlayer structure of water-introduced graphene oxide2015

    • Author(s)
      T. Isaka, T. Yamashina, K. Takai
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Presentation] Correlation between spin magnetism and chemical activity in graphene oxide / nanographene2015

    • Author(s)
      T. Yamashina, T. Isaka, K. Inoue, Y. Matsuo, K. Takai
    • Organizer
      9th International conference on New Diamond and Nanocarbon (NDNC2015)
    • Place of Presentation
      Shizuoka GRANSHIP, Shizuoka, Japan
    • Year and Date
      2015-05-24 – 2015-05-28
    • Int'l Joint Research
  • [Remarks] 高井研究室

    • URL

      http://takailab.ws.hosei.ac.jp/

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Published: 2017-01-06   Modified: 2022-01-31  

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