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Molecular Design of Novel NLO Ferroelectric Thin Films

Research Project

Project/Area Number 03044090
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionKyoto Institute of Technology

Principal Investigator

KIYOTSUKURI Tsuyoshi  Kyoto Institute of Technology, Professor, 繊維学部, 教授 (60027860)

Co-Investigator(Kenkyū-buntansha) MICHAEL A. Schen  National Institute of standards & Technology, USA, 国立標準局・高分子部門, 研究員
AIME S. Dereggi  National Institute of standards & Technology, USA, 国立標準局・高分子部門, 研究員
G.THOMAS Dayis  National Institute of standards & Technology, USA Group Leader, 国立標準局・高分子部門, グループリーダー
NAGATA Minoru  Kyoto Prefectural University. Professor, 短期大学部, 教授 (40046511)
TSUTSUMI Naoto  Kyoto Institute of Technology, Associate Professor, 繊維学部, 助教授 (50172036)
MICHAEL A.Sc  国立標準局, 高分子部門(米国), 研究員
AIME S.DeReg  国立標準局, 高分子部門(米国), 研究員
G.THOMAS Dav  国立標準局, 高分子部門(米国), グループリーダー
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 1992: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1991: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsFerroelectric polymer / Crystallite dipoles / Inrernal electric field / Noncentrosymmetricity / Nonlinear optical effect / Nonlinear optical dye / Second harmonic generation / Curie transition temperature / PVDF / PMMAブレンド / βー結晶双極子 / 分極分布 / 非中心対称性 / 空間電荷 / 非線形光学
Research Abstract

We have studied the internal electric field E_i created by the preferentially oriented beta-crystallite dipoles in the blend of 80 Wt% poly(vinylidene fluoride) (PVDF) and 20 Wt% poly(methyl methacrylate) (PMMA) and the blends of vinylidene fluoride-trifluoroethylene copolymer P(VDF-TrFE) and PMMA, and the second harmonic generation (SHG) from the noncentrosymmetrically oriented beta-crysrallite dipoles and nonlinear optical (NLO) dyes aligned by the internal electric field. We preparedmethyl methacrylate (MMA) copolymer having a NLO pendant group such as Disperse Red 1 (P(MMA-co-MMA-DR1)) as a SHG active polymer.
For both blends. E_i is 2 - 4 MV/cm which is three or four times larger the poling field. E_i for PVDF/PMMA blend is stabilized by the space charge. P(VDF-TrFE)/PMMA and P(VDF-TrFE)/P(MMA-co-MMA-DR1) have the clear Curie transition at the temperature around 105゚C. SHG coefficient d_<33> are 3.3 X 10^<-9> and 2.3 X 10^<-9> esu for P(VDF-TrFE) and (90/10) P(VDF-TrFE)/PMMA, respectively. For P(VDF-TrFE)/PMMA, E_i and d_<33> are thermally stable at the temperature above the glass transition temperature (T_g) and the abrupt decrease of them occurs when one approaches to the Curie temperature. Profile of d_<33> - temperature for P(VDF-TrFE)/P(MMA-co-MMA-DR1) is almost the same as that for P(VDF-TrFE)/PMMA. However, d_<33> for P(MMA-co-MMA-DR1) decreases at the temperature above 40゚C corresponding to the beta-relaxation of PMMAcomponenent and the large decrease starts at the temperature above 90゚C which is lower than T_g. It is particularly important to note that d_<33> for P(VDF-TrFE)/P(MMA-co-MMA-DR1) blend is thermally stable above T_g because the main contribution to SHG activity is due to noncentrosymmetric alignment of beta-crystallite dipoles NLO dye oriented by E_i.

Report

(2 results)
  • 1992 Final Research Report Summary
  • 1991 Annual Research Report

Research Products

(13 results)

All Other

All Publications (13 results)

  • [Publications] Naoto TSUTSUMI Yoshiaki UEDA Tsuyoshi KIYOTSUKURI: "Measurement of the internal electric field in poly(vinylidene fluoride)/poly(methyl methacrylate) blend" Polymer Communications. 33. 3305-3307 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto TSUTSUMI Yoshiaki UEDA Tsuyoshi KIYOTSUKURI Aime S.DEREGGI: "Thermal stability of internal electric field and polarization destribution in PVDF/PMMA blend" G.Thomas Davis J.Applied Physics,.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto TSUTSUMI Yoshiaki UEDA Tsuyoshi KIYOTSUKURI: "Internal electric field and dye orientation in PVDF/PMMA blend" ACS National meeting,Polymer. 32. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto TSUTSUMI Yoshiaki UEDA Tsuyoshi KIYOTSUKURI Aime S. DEREGGI: "Anomalous stability of internal electric field in PVDF/PMMA blend" G.Thomas Davis 4th SPSJ International Polymer Conference,. 229 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto TSUTSUMI Tsuyoshi ONO Tsuyoshi KIYOTSUKURI: "Internal electric field and second harmonic generation in the blends of vinylidene fluoride-trifluoroethylene copolymer and poly(methyl methacrylate) with pendant NLO dye" Macromolecules.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi, Yoshiaki Ueda and Tsuyoshi Kiyotsukuri: "Measurement of the internal electric field in poly(vinylidene fluoride)/poly(methyl methacrylate) blend" Polymer Communications. 33. 3305-3307 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi, Yoshiaki Ueda Tsuyoshi Kiyotsukuri, Aime S. DeReggi and G. Thomas Davis: "Thermal stability of internal electric field and polarization distribution in PVDF/PMMA blend" Journal of Applied Physics submitted.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi, Yoshiaki Ueda and Tsuyoshi Kiyotsukuri: "Internal electric field and dye orientation in PVDF/PMMA blend" ACS National meeting, Polymer Preprints. 32. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi, Yoshiaki Ueda Tsuyoshi Kiyotsukuri, Aime S. DeReggi and G. Thoams Davis: "Anomalous stability on internal electric field in PVDF/PMMA blend" 4th SPSJ International Polymer Conference, Preprints. 229-229 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi, Tduydohi Ono and Tsuyoshi Kiyotsukuri: "Internal electric field and second harmonic generation in the blends of vinylidene fluoride-trifluoroethylene copolymer and poly(methy1 methacrylate) with pendant NLO dye" Macromolecules to be submitted.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoto Tsutsumi: "Measurement of internal electric field in PVDF/PMMA blend" Polymer Communications.

    • Related Report
      1991 Annual Research Report
  • [Publications] Naoto Tsutsumi: "Internal electric field in PVDF/PMMA blend" G.Thomas Davis J.Applied Physics.

    • Related Report
      1991 Annual Research Report
  • [Publications] Naoto Tsutsumi: "Internalelectric field and dye orientation in PVDF/PMMA blend" ACS National meeting,Polymer Preprints. 32(2). (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-03-31   Modified: 2016-04-21  

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