Structural Design of Nonlinear optical Chromophores for High-Performance Photorefractive Polymers
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- Jung Gyeong Bok
- Institute of Industrial Science, University of Tokyo
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- Honda Kayoko
- Institute of Industrial Science, University of Tokyo
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- Mutai Toshiki
- Institute of Industrial Science, University of Tokyo
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- Matoba Osamu
- Institute of Industrial Science, University of Tokyo
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- Ashihara Satoshi
- Institute of Industrial Science, University of Tokyo
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- Shimura Tsutomu
- Institute of Industrial Science, University of Tokyo
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- Araki Koji
- Institute of Industrial Science, University of Tokyo
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- Kuroda Kazuo
- Institute of Industrial Science, University of Tokyo
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抄録
Photorefractive response rate in a polymer composite of poly(N-vinylcarbazole)/2,4,7-trinitro-9-fluorenone, doped with 2,5-dimethyl-4-(4′-nitrophenylazo)anisole (DMNPAA) is improved by modifying the structure of DMNPAA. We found that four kinds of modified DMNPAA with alkyl substituents have fast orientational response to an external electric field and keep large anisotropy in polarizability. Among them, 4-butoxy-3-propyl-1-(4′-nitorophenylazo)benzene has the shortest reorientation time constant of 19 ms (E=54 V/μm) and photorefractive time constant of 80 ms (I=2 W/cm2, E=54 V/μm) that are 2,300 times and 63 times faster than those of the DMNPAA composite. The mechanism of the fast reorientation in new polymer composites is investigated. The fast reorientational response is achieved by the improvement of the dispersivity in the polymer composites and the decrease of the glass transition temperature.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 42 (5A), 2699-2704, 2003
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681231858048
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- NII論文ID
- 130004530788
- 10010715963
- 210000053390
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 6530641
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
