首页> 外文期刊>Bulletin of the Korean Chemical Society >Photorefractive Performance of Poly[methyl-3-(9-carbazolyl) propylsiloxane] Based Composites Sensitized with Poly(3-hexylthiophene) in a 0.2-1wt % Range
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Photorefractive Performance of Poly[methyl-3-(9-carbazolyl) propylsiloxane] Based Composites Sensitized with Poly(3-hexylthiophene) in a 0.2-1wt % Range

机译:聚(3-己基噻吩)在0.2-1wt%范围内敏化的聚[甲基-3-(9-咔唑基)丙基硅氧烷]基复合材料的光折变性能

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摘要

In this work, we report on the characterization of six low-Tg poly[methyl-3-(9-carbazolyl) propylsiloxane] based photorefractive (PR) composites sensitized with poly(3-hexylthiophene) (P3HT) in different concentrations, ranging from 0.2 to 1 wt %. At 632.8 nm, photoconductivity, space charge field, refractive index modulation, and grating buildup time were measured versus external electric field. The photoconductivity was strongly dependent on the visible light absorption and mobility. The magnitude of space charge field was affected by the conductivity contrast ヲph/(ヲph + ヲd). The refractive index modulation increased with the magnitude of space charge field and the PR grating buildup speed increased with the photoconductivity.
机译:在这项工作中,我们报告了六种低 EM> T g 聚[甲基-3-(9-咔唑基)丙基硅氧烷]聚对甲基苯丙胺敏化的光致折射(PR)复合材料的表征聚(3-己基噻吩)(P3HT)的浓度范围为0.2至1重量%。在632.8 nm处,测量了光电导率,空间电荷场,折射率调制和光栅建立时间与外部电场的关系。光电导性很大程度上取决于可见光的吸收和迁移率。空间电荷场的大小受电导率对比度SUB ph /(ヲ ph +ヲ d )的影响。折射率调制随空间电荷场的大小而增加,PR光栅的建立速度随光电导率而增加。

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