Synthesis and unusual physical behavior of a photorefractive polymer containing tris(bipyridyl)ruthenium(II) complexes as a photosensitizer and exhibiting a low glass-transition temperature

被引:64
作者
Wang, Q
Wang, LM
Yu, LP
机构
[1] Univ Chicago, Dept Chem, Chicago, IL 60637 USA
[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA
关键词
D O I
10.1021/ja9825130
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper reports the synthesis and characterization of a low-T-g photorefractive (PR) polymer which contains ionic ruthenium complexes as the photogenerator of charge carriers. It was expected that a combination of the highly efficient photocharge generation of the Ru complex, the efficient charge transporting of the conjugated backbone, and the orientational enhancement associated with low-T-g materials would lead to further improvement of PR performances. However, it was very interesting to find that the PR performance of this polymer was Limited by the local internal field formed in response to the external electric field by the alignment of ion pairs around the photocharge generation sites. The effects of such a local field on photocharge generation and photorefractivity were investigated through the analyses of the dependence of photocurrent, photorefractive gain, diffraction efficiency, electrooptic activity, and birefringence on the applied field. The dynamic behavior of the PR grating formation was also investigated.
引用
收藏
页码:12860 / 12868
页数:9
相关论文
共 28 条
  • [21] PHOTOCONDUCTING ELECTROOPTIC POLMER FILMS
    SCHILDKRAUT, JS
    [J]. APPLIED PHYSICS LETTERS, 1991, 58 (04) : 340 - 342
  • [22] Photorefractive materials for holographic interferometry
    Schloter, S
    Haarer, D
    [J]. ADVANCED MATERIALS, 1997, 9 (12) : 991 - &
  • [23] STREY BT, 1965, J POLYM SCI A, V3, P265
  • [24] OPTIMAL PROPERTIES OF PHOTOREFRACTIVE MATERIALS FOR OPTICAL-DATA PROCESSING
    VALLEY, GC
    KLEIN, MB
    [J]. OPTICAL ENGINEERING, 1983, 22 (06) : 704 - 711
  • [25] HIGH PHOTOREFRACTIVE GAIN IN NEMATIC LIQUID-CRYSTALS DOPED WITH ELECTRON-DONOR AND ACCEPTOR MOLECULES
    WIEDERRECHT, GP
    YOON, BA
    WASIELEWSKI, MR
    [J]. SCIENCE, 1995, 270 (5243) : 1794 - 1797
  • [26] PHOTOREFRACTIVE POLYMERS .2. STRUCTURE DESIGN AND PROPERTY CHARACTERIZATION
    YU, LP
    CHAN, WK
    BAO, ZN
    CAO, SXF
    [J]. MACROMOLECULES, 1993, 26 (09) : 2216 - 2221
  • [27] Multifunctional polymers exhibiting photorefractive effects
    Yu, LP
    Chan, WK
    Peng, ZH
    Gharavi, A
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 1996, 29 (01) : 13 - 21
  • [28] Photorefractive polymers and composites
    Zhang, Y
    Burzynski, R
    Ghosal, S
    Casstevens, MK
    [J]. ADVANCED MATERIALS, 1996, 8 (02) : 111 - 125