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電磁場制御環境下における光化学反応の研究

Research Project

Project/Area Number 15033202
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

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

Principal Investigator

太田 信廣  北海道大学, 電子科学研究所, 教授 (70113529)

Co-Investigator(Kenkyū-buntansha) 中林 孝和  北海道大学, 電子科学研究所, 助教授 (30311195)
飯森 俊文  北海道大学, 電子科学研究所, 助手 (60360947)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2004: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2003: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywords光物性 / 構造・機能材料 / 光導電性 / 光反応 / 光物理化学 / 光反応ダイナミクス / 光機能物性 / 電子励起分子 / 電界発光
Research Abstract

光誘起電子移動反応を示す試料や分子間錯体形成を示す試料、および特異的な光学特性や光触媒特性を示す半導体微粒子(CdS)を対象として光化学反応への電磁場効果を調べた。高分子フィルムに取り込んだこれらの分子や微粒子に対して高圧の電場を作用させた場合と作用させない場合で反応速度がどのように異なるのかを定常光励起における吸収および蛍光の強度測定さらにはパルス光励起における蛍光の時間減衰測定を行うことにより調べた。
吸収強度や蛍光強度の電場効果が小さなものであってもその変化が検出できるように定常光励起に対しては微小信号測定装置であるロックインアンプを用いて測定を行った。また、この変化成分が静磁場を作用させた場合にどのように変化するかを調べた。磁場効果の実験あるいは電場と磁場の相乗効果をみる実験では、研究室既存の電磁石(最大1テスラ)を用いて種々の大きさの静磁場の中で行った。
また、これら電磁場効果の実験を極低温から400Kまでの広い温度領域において調べることのできる装置の作製を行った。定常光実験および時間分解実験を行うことのできるこれらの装置を用いて、種々の温度において光化学反応への電磁場効果を調べた。今回は特に光誘起電子移動反応系としてはカルバゾールとテレフタル酸ジメチル、スチルベン誘導体およびポルフィリン誘導体とC60の組み合わせによるドナー・アクセプター系を対象として行った。またピレンおよびその誘導体であるピレン酪酸さらにはピレン連結化合物におけるエキシマー蛍光への電場・磁場効果も合わせて調べた。

Report

(2 results)
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (22 results)

All 2005 2004 Other

All Journal Article (14 results) Book (1 results) Publications (7 results)

  • [Journal Article] Remarkable temperature dependence of the electrofluorescence spectra of pyrene dopes in a polymer film2005

    • Author(s)
      T.Iimori, A.M.Ara, T.Yoshizawa, T.Nakabayashi, N.Ohta
    • Journal Title

      Chem.Phys.Lett. 402

      Pages: 206-211

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The role of charge-transfer excited states in the electroabsorption spectra of directly meso-meso linked porphyrin arrays2005

    • Author(s)
      Y.Matsuzaki, A.Nogami, Y.Iwaki, N.Ohta, N.Yoshida, N.Aratani, A.Osuka, K.Tanaka
    • Journal Title

      J.Phys.Chem. 109・4

      Pages: 703-713

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Time-resolved measurement system of electrofluorescence spectra2004

    • Author(s)
      M.Tsushima, T.Ushizaka, N.Ohta
    • Journal Title

      Rev.Sci.Instrum. 75・2

      Pages: 479-485

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electric field effects on photoinduced electron transfer processes of methylene-linked compounds of pyrene and N,N-dimethylaniline in a PMMA polymer film2004

    • Author(s)
      M.Tsushima, N.Ohta
    • Journal Title

      J.Chem.Phys. 120・13

      Pages: 6238-6245

    • Related Report
      2004 Annual Research Report
  • [Journal Article] External electric field effects on absorption, fluorescence and phosphorescence spectra of 4-(dimethylamino)benzonitrile in a polymer film2004

    • Author(s)
      T.Yoshizawa, Y.Iwaki, N.Osaka, T.Nakabayashi, K.A.Zachariassse, N.Ohta
    • Journal Title

      J.Phys.Chem., B 108

      Pages: 19132-19139

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electric field effects on photoisomerization process of diphenylpolyenes doped in a polymer film as revealed by a field-induced change in fluorescence spectrum2004

    • Author(s)
      M.Wahadoszamen, T.Nakabayashi, N.Ohta
    • Journal Title

      Chem.Phys.Lett. 387

      Pages: 124-129

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Stark spectroscopy of indole and 3-methylindole embedded into a polymethylmethacrylate film : field induced orientation effect2004

    • Author(s)
      E.Jalviste, N.Ohta
    • Journal Title

      J.Chem.Phys. 121・10

      Pages: 4730-4739

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Direct measurements of the electric-field-induced change in fluorescence decay profile of pyrene doped in a polymer film2004

    • Author(s)
      T.Nakabayashi, T.Morikawa, N.Ohta
    • Journal Title

      Chem.Phys.Lett. 395

      Pages: 346-350

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 時間相関単一光子計数法と変調電場を組み合わせた時間分解電場蛍光スペクトル測定装置の製作2004

    • Author(s)
      津島稔, 牛坂健, 太田信廣
    • Journal Title

      分光研究 53・2

      Pages: 93-101

    • NAID

      10012346033

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 電場印加による発光特性変化のリアルタイム観測装置の開発2004

    • Author(s)
      太田信廣
    • Journal Title

      Material Stage 4・6

      Pages: 124-128

    • NAID

      40006423585

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A Relation between external electric field effect on photoluminescence and generation efficiency of electroluminescence : methylene-linked compounds of pyrene doped in a polymer film2004

    • Author(s)
      N.Ohta, T.Nakabayashi, T.Iimori, T.Yoshizawa, T.Morikawa
    • Journal Title

      Proceedings of Electroluminescence Conference 2004

      Pages: 358-361

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Time-resolved measurements of the external electric field effects on fluorescence in electron donor and acceptor pairs of N-ethylcarbazole and dimethyl terephthalate doped in a polymer film

    • Author(s)
      T.Iimori, T.Yoshizawa, T.Nakabayashi, N.Ohta
    • Journal Title

      Chem.Phys. (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] External electric field effects on the photoexcitation dynamics of diphenylpolyenes

    • Author(s)
      T.Nakabayashi, M.Wahadoszamen, N.Ohta
    • Journal Title

      J.Am.Chem.Soc. (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Photo-switching behvior of CdS nanoparticles doped in a polymer film

    • Author(s)
      Y.Ohara, T.Nakabayashi, K.Iwasaki, T.Torimoto, B.Ohtani, N.Ohta
    • Journal Title

      C.R.Chimie (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Book] 化学便覧 基礎編 第5版15.8章「電子スペクトル」(岩澤康裕編)2004

    • Author(s)
      太田信廣
    • Total Pages
      19
    • Publisher
      丸善
    • Related Report
      2004 Annual Research Report
  • [Publications] N.Ohta: "Acceleration and deceleration of photoinduced electron transfer rates by an electric field in porpyrin-fullerene dyads"Chem.Phys.Lett.. 368. 230 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Mizoguchi: "Fluorescence of an electron donor-acceptor system in a polymer film under the simultaneous application of electric field and magnetic field"Chem.Phys.Lett.. 372. 66 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Tsushima: "Time-resolved measurement system of electrofluorescence spectra"Rev.Sci.Instrum.. 75. 479 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Tsushima: "Time-resolved measurements of electrofluorescence spectra of linked compounds of pyrene and dmethylaniline in a PMMA polymer film"J.Chem.Phys.. (印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Md.Wahadoszamen: "Electric field effects on photoisomerization process of diphenylpolyenes doped in a polymer film as revealed by a filed-induced change in fluorescence spectrum"Chem.Phys.Lett.. 387. 124 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 津島 稔: "時間相関単一光子計数法と変調電場を組み合わせた時間分解電場蛍光スペクトル測定装置の製作"分光研究. (印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Iwaki: "Electric field effects on absorption and emission spectra of end-phenylethynylated meso-meso linked porphyrin arrays in a polymer film"Advanced Macromolecular and Supramolecular Materials and Processes. 320 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2018-03-28  

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