以四丁氧基鈦調整凝膠玻璃分散型液晶光電性質

Abstract

摘 要 本論文主要探討以四丁氧基鈦（Titanium(IV) n-butoxide） 調整凝膠玻璃分散型液晶薄膜光電性質，其中光電性質包括工作電壓(driving)、對比度（Contrast ratio）。 實驗中我們選用50% (wt%)三甲氧基矽丙胺和50%（wt%）1- 甲基- 1,1-二乙氧基矽丙胺矽氧烷類材料製作GDLC而折射率調整方面我們選用四丁氧基鈦皆能使折射率調整到和液晶相匹配（match） 一方面以四丁氧基鈦含量為12%(wt%)，液晶濃度為70%（wt%）所製作GDLC膜光電特性工作電壓8伏特為最佳，另一方面以四丁氧基鈦含量為13%(wt%)，液晶濃度為70%（wt%）所製作GDLC膜光電特性對比度(contrast ratio)3.1為最佳。四丁氧基鈦含量為12%(wt%) 與四丁氧基鈦含量為13%(wt%)所形成gel-glass電阻係數相比較略微提高 ，而成膜時間亦略微縮短。另一方面三甲氧基矽丙胺，1- 甲基- 1,1-二乙氧基矽丙胺與四丁氧基鈦以不同比例混合所形成gel-glass電阻係數亦會增加，而在成膜時間會隨著四丁氧基鈦比例（重量比）增加而有所縮短，折射率亦會略微增加，但在外觀並無顯著改變皆為透明無色。

Abstract This article focuses on Titanium (IV) n-butoxide adjusting to the electrooptical property of the gel-glass dispersed liquid crystal film. Working voltage and contrast ratio are part of the electrooptical property. In the experiment we used 50% of 3-aminopropyltrimethoxysilane and 50% of 3-(diethoxymethylsilyl) propylamine to produce GDLC. To adjust the refraction ratio we used Titanium (IV) n-butoxide and made the ratio match the crystal. One optimal result that we had is the property of GDLC under a working voltage of 8 volts made from 12% (wt%) of Titanium (IV) n-butoxide with 70% (wt%) liquid crystal thickness. Another optimal result is the property of GDLC with contrast ratio of 3.1 made from 13% (wt%) of Titanium (IV) n-butoxide with 70% (wt%) liquid crystal thickness. The resistance coefficient of the gel-glass from 12% (wt%) of Titanium (IV) n-butoxide is a little higher than that of the gel-glass from 13% (wt%) ofTitanium (IV) n-butoxide, and the time for film-making is also a little shorter. Also the resistance coefficient of the gel-glass increases if 3-aminopropyltrimethoxysilane are mixed with Titanium (IV) n-butoxide in different proportion, and the time for film-making is shorter with increased proportion (weigh) of Titanium (IV) n-butoxide. The refractive index will increase a little bit too. However, both of their appearances are similar, i.e., transparently white.