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首页> 外文期刊>Physical review, E. Statistical physics, plasmas, fluids, and related interdisciplinary topics >Evidence for a discotic smectic-nematic phase induced in Langmuir-Blodgett films
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Evidence for a discotic smectic-nematic phase induced in Langmuir-Blodgett films

机译:Langmuir-Blodgett电影中诱发碟状近晶向列相的证据

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摘要

Langmuir-Blodgett (LB) films are reported for an amphiphilic disklike mesogene with a nematic liquid crystalline phase in bulk. The molecular arrangement of a discotic smectic-nematic phase, induced in the LB films, is evidenced by means of x-ray diffraction, atomic force microscopy, and UV-VIS (visible) absorption spectroscopy. The disklike molecules are ``edge-on'' arranged with a bilayer periodicity of 4.45 nm normal to the solid substrate and with a nematic arrangement in the monolayer planes. This structure results in extremely smooth top film surfaces.
机译:据报道,Langmuir-Blodgett(LB)薄膜是两亲性盘状介晶,具有大量向列液晶相。通过X射线衍射,原子力显微镜和UV-VIS(可见)吸收光谱法证明了LB膜中盘状近晶向列相的分子排列。盘状分子被“边缘化”,其垂直于固体基质的双层周期为4.45 nm,在单层平面上呈向列排列。这种结构产生了极光滑的顶膜表面。

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