研究利用單一光源引致光控型膽固醇液晶產生快速及可逆相變化之行為

本研究主要是在討論透過AQ-dye、偶氮染料分子(Azo-dye molecule)、膽固醇液晶的摻雜，目的是為了利用光來調變膽固醇液晶，其調變的方法通常是利用二種不同的激發光源照射，然而本實驗致力於開發只利用單一激發光源來調變光控型膽固醇液晶，不必使用第二道光源，因此為了要證實此相變化會發生，我們觀察樣本所量測的穿透頻譜及相圖的變化，也分析光控型膽固醇液晶的光控性質以及其反應時間快慢，由這些實驗結果中發現只利用單一激發光源不但可以使光控型膽固醇液晶產生快速的相變化，而且還可以在膽固醇液晶相的暗態與亮態之間作可逆性的轉變。

關鍵字

偶氮染料分子；膽固醇液晶；單一激發光源

並列摘要

This research is mainly in the discussion through AQ-dye, azo dye molecule (Azo-dye molecule), doped cholesteric liquid crystal, the main purpose is to use light to modulate the cholesteric liquid crystal, the modulation method is usually the use of two kinds of different excitation light source, however, committed to the development of this experiment using only a single light source to modulate the excitation light control type cholesteric liquid crystal, without the use of the second light source, so in order to prove that this phase change will occur, we observed that the measured sample penetrate the spectrum as well as changes in the phase diagram, while also analyzing light control type cholesteric liquid crystal light control nature as well as its speed of reaction time, the results of these experiments found that using only a single excitation source can not only make light control type cholesteric liquid crystal phase results in a rapid changes, but also in the cholesteric liquid crystal phase between dark and bright for the reversible change in state.