膽固醇液晶摻雜矽奈米粒子之光電特性之研究

Studies of Electro-Optical Effect of Cholesteric Liquid Crystals Doped Silica Nanoparticles

黃均輝(Jyun-Huei Huang)

指導教授 ： 林蕙琪

國立虎尾科技大學/電機資訊學院/光電與材料科技研究所/碩士(2014年)

https://doi.org/10.6827/NFU.2014.00177

摘要

本研究是使用膽固醇液晶摻雜入奈米粒子二氧化矽後形成可以調控繞射點方向的光柵，其原理主要是利用膽固醇液晶在混合排列(Hybrid)的配向中加入電壓會形成繞射點並且隨電壓的變化而轉動方向的原理，本實驗在兩面玻璃基板皆用水平配向並藉由調控奈米粒子二氧化矽來使其中一面基板的液晶為垂直排列，使得可以變為不同方向的混合排列，而這樣的機制使用在膽固醇液晶光柵上就可使得轉動方向可以順時鐘轉也可逆時鐘轉。

關鍵字

膽固醇液晶 ； 光柵 ； 矽奈米粒子

並列摘要

In this study,a grating fabricated with cholesteric liquid crystals doped with silica nanoparticles can roate the diffraction direction,The principle is that thedirection of diffraction pattern in the cholesteric liquid crystal cell with hybrid alignment vary with the applied voltage. In the experiment,the homeogeneous alignment were used. By modulating the doped silica nanoparticles in the CLC cell,the hybrid alignment cell with vertical alignment in up and in down substrates were obtained. Therefore the diffraction pattern of the ,cholesteric liquid crystal grating can be ratated clockwise and anticlockwise.

並列關鍵字

Cholesteric Liquid ； Grating ； Silica Nanoparticles

參考文獻

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