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強磁場とスピン化学を活用した共役ポリマーの超階層構造の構築と光機能特性の磁場制御

Research Project

Project/Area Number 19022027
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionKyushu University

Principal Investigator

米村 弘明  Kyushu University, 大学院・工学研究院, 准教授 (40220769)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywords強磁場 / ナノクラスター / 共役ポリマー / カーボンナノチューブ / 金ナノロッド / 磁場配向 / 表面プラズモン / 偏光吸収スペクトル / スピン化学 / カーボンナノチュープ
Research Abstract

フェノチアジン-C_<60>連結化合物のナノクラスターをITO電極に修飾する際に強磁場印加プロセスを行い、修飾電極における形態・電気化学・光電気化学に及ぼす磁場印加プロセスの影響について検討した。無磁場では小さなナノ粒子(約20nm)、3つの磁場環境では、大きなナノ粒子(約60nm)が微小重力場(5.6T ; -940T^2/m)で、ファイバー状ナノ構造が通常重力場(15T ; OT^2/m)、ロッド状ナノ構造が過重力場(9.8T ; +1070T^2/m)で観測された。この様に、無磁場の場合に比較して、形態の異なるナノ構造が観測された。また、修飾ITO電極の電気化学および光電流測定を行うと、強磁場印加プロセスによって結果が変化した。次に、ポリチオフェンの1次元ナノワイヤーの磁場配向について試みた。AFM測定より、無磁場ではランダム配向が観測された。一方、強磁場を印加すると外部磁場とほぼ垂直方向に配向しているナノワイヤーがAFM像において多く観測された。基板の偏光吸収スペクトルにおいて、強磁場を印加した場合(8T ; OT^2/m, 平行)では、ポリマー主鎖の吸収度が磁場と平行偏光を用いた場合(H(//))の方が垂直偏光を用いた場合(H(⊥))よりも大きくなった。これらの結果より、ポリチオフェンから成るナノワイヤーの磁場配向が達成されたと考えられる。さらに、強磁場を印加した場合(6.1T ; -485T^2/m, 垂直)では、磁気力と重力が逆方向である磁場環境で最もH(//)とH(⊥)の吸光度の差が大きくなった。これらの結果より、強磁場によるナノ構造において磁気力の効果の重要性が示せた。さらに、金ナノロッドの複合体における磁場組織化についても表面プラズモンによって評価した。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (19 results)

All 2009 2008 2007

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (6 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Effects of Magnetic Processing on Electrochemical, and Photoelectrochemical Properties of Electrodes Modified with Nanoclusters of a Phenothiazine-C_60 Linked Compound2009

    • Author(s)
      H. Yonemura, et.al.
    • Journal Title

      Journal of Physics : Conference Series (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Orientation of Nanowires consisting of Poly(3-hdylthiophene) using Strong Magnetic Field2009

    • Author(s)
      H. Yonemura, et.al.
    • Journal Title

      Synth. Met (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Organization of Gold Nanorod on a Substrate using Strong Magnetic Field2009

    • Author(s)
      H. Yonemura, et.al.
    • Journal Title

      Thin Solid Films (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Magnetic Processing on Morphological, Electrochemical, and Photoelectrochemical Properties of Electrodes Modified with Nanoclusters of a Phenothiazine-C_<60> Linked Compound2009

    • Author(s)
      H. Yoriemura, et.al.
    • Journal Title

      Thin Solid Films (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Orientation and Organization of Single-Walled Carbon Nanotubes or Their Composite Materials using Polymer Wrapping2008

    • Author(s)
      H. Yonemura et.al.
    • Journal Title

      Sci. Technol. Advanced Materials 9

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 強磁場を利用した微小重力(無重力)及び過重力環境における繊維状材料の配列2008

    • Author(s)
      藤原好恒、米村弘明
    • Journal Title

      ケミカルエンジニアリング 53

      Pages: 720-726

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Conjugated Polymer Hybrid Thin Films with Radially Oriented Aluminosilicate Nanofibers by Spin-Assembly2008

    • Author(s)
      N. Jirabanichanun, et.al.
    • Journal Title

      Bull. Chem.Soc. Jpn. 81

      Pages: 1663-1668

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of mono- and multilayered films with Mn^<2+>-doped ZnS nanoparticles and luminescence properties of the monolayered films prepared by applying magnetic fields2008

    • Author(s)
      H., Yonemura, et. al.
    • Journal Title

      Thin Solid Films 516

      Pages: 2432-2437

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoelectrochemical reactions of electrodes modified with composites between conjugated polymer or ruthenium comp;ex and single-walled carbon nanotubes2008

    • Author(s)
      H., Yonemura, et. al.
    • Journal Title

      Thin Solid Films 516

      Pages: 2620-2625

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Magnetic Processing on Electrochemical and Photoelectrochemical Properties of Electrodes Modified with C_60-Phenothiazine Nanoclusters2008

    • Author(s)
      H., Yonemura, et. al.
    • Journal Title

      Japanese Journal of Applied Physics 47

      Pages: 1178-1183

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic field effects and time-resolved EPR studies on the photogenerated biradicals in phenoghiazine-C_60 linked systems: clarification of the mechanism of novel magnetic field effects by dependences of methylene chain length and temperature2007

    • Author(s)
      S., Moribe, et. al.
    • Journal Title

      Chemical Physics 334

      Pages: 242-252

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Magnetic Field Effects on Photoinduced Electron-Transfer Reactions and Morphol ogy of Nanostructures in Donor-C60 Systems2008

    • Author(s)
      H. Yor emura
    • Organizer
      Global COE Program : Prof. Jean-Marie Lehn Symposium III
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2008-10-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Magnetic Control of Morphological, Electrochemical, and Photoelectrochemical Properties of ITO-Electrodes Modified with Nanoclusters of C_<60>-Phenothiazine System2008

    • Author(s)
      H. Yonemura, et.al.
    • Organizer
      3rd International Workshop on Materials Analysis and Processing in Magnetic Fields
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2008 Annual Research Report
  • [Presentation] Magnetic Orientation of Nanowires consisting of Poly(3-hexylthiophene)2008

    • Author(s)
      H. Yonemura
    • Organizer
      18th Iketani Conference
    • Place of Presentation
      Awaji, Japan
    • Related Report
      2008 Annual Research Report
  • [Presentation] NOVEL MAGNETIC FIELD EFFFCTS AND TIME-RESOLVED EPR SECTRA OF BIRADICALS FROM PHOTOINDUCED INTRAMOLECULAR ELECTRON TRANSFER REACTIONS IN DONOR-C60 LINKED COMPOUNDA2007

    • Author(s)
      H., Yomemura, et. al.
    • Organizer
      Spin Chemisutry Meeting 2007
    • Place of Presentation
      Venis, Italy
    • Related Report
      2007 Annual Research Report
  • [Presentation] Effects of Magentic Processing on Morphological, Electrochemical, and Photoelectrochemical Properties of ITO-Electrodes Modified with Nanoclusters of C60-Phenothizaine System2007

    • Author(s)
      H., Yomemura, et. al.
    • Organizer
      International Conference on Magneto-Science 2007
    • Place of Presentation
      Hiroshima, Japan
    • Related Report
      2007 Annual Research Report
  • [Presentation] Magnetic Field Effects and Time-Resolved EPR Spectra of Biradicals from Photoindueed Intramolecular Electron Transfer Reactions in Donof-C60 Linked Compounds2007

    • Author(s)
      H., Yomemura, et. al.
    • Organizer
      2007 Korea-Japan Symposium on Frontier Photoscience
    • Place of Presentation
      Gyeongju, Korea
    • Related Report
      2007 Annual Research Report
  • [Book] 次世代共役ポリマーの超階層制御と革新機能2009

    • Author(s)
      米村弘明
    • Publisher
      シーエムシー出版
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 金ナノロッドの配向方法ないし配向固定化方法とその基板等2008

    • Inventor(s)
      米村弘明、 山田淳、 陶山順
    • Industrial Property Number
      2008-195735
    • Filing Date
      2008-07-30
    • Related Report
      2008 Annual Research Report

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Published: 2007-04-01   Modified: 2018-03-28  

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