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自己組織化カイラルフォトニック欠陥構造による光-分子強結合場の創成

Research Project

Project/Area Number 20043020
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

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

Principal Investigator

尾崎 雅則  Osaka University, 大学院・工学研究科, 教授 (50204186)

Project Period (FY) 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2008: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywords液晶 / フォトニック結晶 / ナノ材料 / カイラリティ
Research Abstract

カイラル・フォトニック欠陥構造における群速度異常、光局在効果などに基づく光-分子強結合場の創成と機能応用を目指して研究を行った。得られた主な成果は以下のとおりである。(1)三次元的に螺旋周期構造の発達したコレステリック・プルー相液晶のフォトニックバンド構造の解明を行った。すなわち、コレステリック・ブルー相は、三次元螺旋構造を形成するが、構造内に液晶の配向の乱れた欠陥構造を形成すると言われている。そこで、分子動力学計算により求めた配向テンソル分布をもとにして、時間領域差分法(FDTD法)を用いたシミュレーションを行い、コレステリック・ブルー相のフォトニックバンド構造を検討した。その結果、ブルー相内では、単なるコレステリック相の選択反射バンドのみならず、欠陥構造に起因する高次のバンドが観測されることが明らかとなった。また、欠陥部位に高誘電率材料を導入することにより、完全フォトニックバンドギャップが発現する可能性があることを見出した。(2)コレステリック・ブルー相の固定化の手法として、光重合性液晶を用いて、三次元螺旋周期構造を形成した後に紫外光を照射して構造の固定化を行った。その結果、照射紫外高強度が弱い場合には、構造の崩れが観測され、ある閾値以上の紫外光照射による重合が構造の固定化に必要であることを明らかにした。(3)光重合による構造固定化がレーザー発振特性に及ぼす影響を調べた。その結果、固定化前にはブルー相IおよびIIの何れの相においてもレーザー発振が観測されたが、固定化後は、ブルー相Iで発振が観測されたにもかかわらず、重合前にブルー相Iに比べて低い閾値でレーザー発振していたブルー相IIでは観測されないことを示した。

Report

(1 results)
  • 2008 Annual Research Report
  • Research Products

    (23 results)

All 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (17 results)

  • [Journal Article] Pinning Effect of Mixed Cellulose Ester Membrane on Appearance of Cholesteric Blue Phases2009

    • Author(s)
      Masayoshi Ojima
    • Journal Title

      Appl. Phys. Express 2

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local liquid crystal alignment on patterned micrograting structures photofabricated by two photon excitation direct laser writing2008

    • Author(s)
      Chee Heng Lee
    • Journal Title

      Appl.Phys.Lett. 93

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of oriented ZnO nanopillar self-assemblies and their application for photovoltaic devices2008

    • Author(s)
      Xiaohui Ju
    • Journal Title

      Nanotechnology 19

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase Destruction upon Photopolymerization of Cholesteric Liquid Crystal Blue Phases with Mono-and Diacrylate Constituents2008

    • Author(s)
      Hiroyuki Yoshida
    • Journal Title

      Chem. Lett. 37

      Pages: 1242-1243

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-plane pitch control of cholesteric liquid crystals by formation of artificial domains via patterned photopolymerization2008

    • Author(s)
      Hiroyuki Yoshida
    • Journal Title

      Opt. Express 16

      Pages: 19034-19042

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Micro-Grating Structures by Direct Laser Writing Based on Two Photon Process and Their Liquid Crystal Alignment Abilities2008

    • Author(s)
      Chee Heng Lee
    • Journal Title

      IEICE Trans. Electron. E91-C

      Pages: 1581-1586

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Cholesteric Liquid Crystal Lasers with In-plane Helix Alignment2009

    • Author(s)
      Masanori Ozaki
    • Organizer
      SPIE Photonics West, OPTO 2009
    • Place of Presentation
      Jose, California USA
    • Year and Date
      2009-01-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of Solvent Vapor Treatment on Photovoltaic Properties of Conducting Polymer/C60 Interpenetrating Heterojunction Structured Organic Solar Cell2008

    • Author(s)
      Varutt Kittichungchit
    • Organizer
      8th International Conference on Nano-MolecularElectronics(ICNME2008)
    • Place of Presentation
      Kobe, Hyogo, Japan
    • Year and Date
      2008-12-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] MoO3 Buffer Layer Effect on Photovoltaic Properties of Interpenetrating Heterojunction Type Organic Solar Cells2008

    • Author(s)
      Tetsuro Hori
    • Organizer
      8th International Conference on Nano-MolecularElectronics(ICNME2008)
    • Place of Presentation
      Kobe, Hyogo, Japan
    • Year and Date
      2008-12-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Expanded Temperature Range of Cholesteric Blue Phase by Three Dimensional Network Structures2008

    • Author(s)
      Masayoshi Ojima
    • Organizer
      The IUMRS International Conference in Asia 2008(IUMRS-ICA 2008)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2008-12-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] Lasing in Cholesteric Liquid Crystal Blue Phases and the Effects of Photopolymerization2008

    • Author(s)
      Hiroyuki Yoshida
    • Organizer
      The IUMRS International Conference in Asia 2008(IUMRS-ICA 2008)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2008-12-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] LC Alignment on Patterned Structure Fabricated by Laser Lithography2008

    • Author(s)
      Masanori Ozaki
    • Organizer
      The 15th International Display Workshops,(IDW'08)
    • Place of Presentation
      Niigata, Japan
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] Two Photon Fluorescence Microscopy Technique for Three-Dimensional Imaging of LC Director2008

    • Author(s)
      Hiroyuki Yoshida
    • Organizer
      The 15th International Display Workshops,(IDW' 08)
    • Place of Presentation
      Niigata, Japan
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] Organic Electronics-Liquid Crystal, Organic EL and Solar Cell-2008

    • Author(s)
      Masanori Ozaki
    • Organizer
      2nd International Conference on Mathematics and Natural Sciences(ICMNS)2008
    • Place of Presentation
      Bandung, Indonesia
    • Year and Date
      2008-10-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] Band edge and localization effects on low threshold lasing in chiral liquid crystals2008

    • Author(s)
      Masanori Ozaki
    • Organizer
      The 4th Japanese-Italian Workshop on Liquid Crystals(JILC' 08)
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effects of Polymer Network Structure on Expansion of Cholesteric Blue Phases Temperature2008

    • Author(s)
      Hiroaki Asagi
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-07-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] Destruction of Phase Observed upon Photopolymerizing Certain Blue Phase Mixtures2008

    • Author(s)
      Hiroyuki Yoshida
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-07-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of Mixed Cellulose Ester Membrane Structure on Appearance of Cholesteric Blue Phases2008

    • Author(s)
      Masayoshi Ojima
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-07-01
    • Related Report
      2008 Annual Research Report
  • [Presentation] Three-Dimensional Imaging of Liquid Crystals via Two-Photon Excitation Confocal Laser Scanning Microscopy2008

    • Author(s)
      Satoshi Suzuki
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-07-01
    • Related Report
      2008 Annual Research Report
  • [Presentation] Band-Edge Excitation and Defect-Mode Effects for Low Threshold Laser Action in Chiral Liquid Crystals2008

    • Author(s)
      Masanori Ozaki
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Optical Properties of Nanoimprinted Grating with Nematic Liquid Crystal2008

    • Author(s)
      Ryotaro Ozaki
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Emission Characteristics of Polymerized Cholesteric Blue Phases2008

    • Author(s)
      Takuya Isomura
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Continuous Wavelength Tuning in Cholesteric Liquid Crystal Lasers with an In-Plane Helix Alignment2008

    • Author(s)
      Yo Inoue
    • Organizer
      22th International Liquid Crystal Conference, ILCC 2008
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-30
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2018-03-28  

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