高效聚合物光折变材料:发色团烷基端基对光折变性能的影响

Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI:10.1080/10587250108030048

H. Chun, I. Moon, Dong-Ho Shin, Nakjoong Kim

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引用次数: 1

摘要

摘要:研究了以咔唑取代的聚硅氧烷为基础，掺杂一系列NLO发色团和光敏剂的光折变复合材料。除了器件稳定性外，还观察到发色团的烷基端基对复合材料的电光和光电导率有影响。在60 V/μm下，以4-二乙基氨基对酶二腈为发色团的复合材料的增益系数大于100 cm−1。复合材料在90 V/μm时的增益为ca.2.0，表明泵浦光束几乎被转移到信号光束。

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The Highly Efficient Polymeric Photorefractive Materials: Influence of Alkyl End Group of Chromophore on Photorefractive Properties

Abstract Photorefractive composites based on carbazole-substituted polysiloxane, doped with a series of NLO chromophores and photo-sensitizer were presented. The alkyl end group of chromophore was observed to influence electro-optic and photoconductivity of composite, in addition to device stability. And the gain coefficient of composite containing 4-diethylaminobenzylidene malonitrile as a chromophore was over 100 cm −1 at 60 V/μm. And gain of composite was ca.2.0 at 90 V/μm, which indicates that the pump beam was almost transferred to the signal beam.

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Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals

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