本研究利用電泳法將單一分散的 PS 球組裝成最密堆積且大範圍的蛋白
石結構。接著以有序排列的 PS 球為模板,利用定電位法填充 ZnO 材料,成 功獲得 ZnO 反蛋白石結構,此兩種結構皆可由光學儀器觀察到其光子晶體 的性質。
ZIO 奈米結構經過低表面能的 FAS-17 修飾後,可以達到超疏水的性質 且遲滯效應很小,能夠展現類似蓮花的自潔效果。相較於其他超疏水奈米 結構的製備方式,本製程擁有簡單、快速的優勢。
利用外加交流電位,能夠使超疏水性的 ZIO 結構轉變為親水性,展現 EWOD 效應。藉由製備出不同厚度的 ZIO 結構,獲得不同的 EWOD 效果々本研 究中,以 0.7μm 的 ZIO 結構展現出明顯的 EWOD 效應,在外加 31 V 的電位 下,即有 74°的接觸角轉變。且由電位和接觸角的關係圖中,發現外加電場 能使鹽水液滴突破能量障礙,由原本的 Cassie 轉變為 Wenzel 狀態。
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