Preparation of highly efficient polymeric photorefractive composite containing an isophorone-based NLO chromophore

被引：79

作者：

Chun, H ^{[1
]}

Moon, IK ^{[1
]}

Shin, DH ^{[1
]}

Kim, N ^{[1
]}

机构：

[1] Hanyang Univ, Dept Chem, Ctr Organ Photorefract Mat, Seoul 133791, South Korea

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 09期

关键词：

D O I：

10.1021/cm000913s

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We synthesized 2-{3-[(E)-2-(dibutylamino)-1-ethenyl]-5,5-dimethyl-2-cyclohexenylidene}malononitrile as a noval nonlinear optical (NLO) chromophore for photorefractive materials. The photorefractive polymeric composite composed of photoconducting carbazole-substituted polysiloxane, NLO chromophore, and 2,4,7-trinitro-9-fluorenone exhibited excellent photorefractive properties. The gain coefficient of the composite containing 30 wt % of chromophore was as high as 390 cm(-1) at the electric field of 100 V/mum, which is one of the largest values obtained so far in the field of polymeric photorefractive materials. And the composite with a thickness of 60 mum showed the maximum diffraction efficiency of 56% at 30 V/mu pm.

引用

页码：2813 / 2817

页数：5

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