本研究利用熱裂解化學氣相沉積法成長奈米碳管。催化劑薄膜是利用磁控濺鍍的方式製備,配合還原氣氛/碳源流量比、反應壓力和溫度等調控,在基板(矽、二氧化矽或金屬電極層)上成長結晶性良好的單壁奈米碳管(SWNTs)。研究主要探討如何減小SWNTs管徑的分佈範圍,我們利用共濺鍍的方式製備催化劑薄膜,經由拉曼光譜和HRTEM的分析,證明所生成的SWNTs主要的管徑為1.24 nm。
本研究亦探討鋁承載層對SWNTs成長的影響,實驗中主要討論(1)不同鋁膜厚度對SWNTs成長的比較;(2)鋁表面的粗糙性質對SWNTs成長的影響。
在建立SWNTs的製程以及了解相關催化劑的作用後,研究的主題導向如何控制定量及定位的側向成長SWNTs,以應用於未來的電子元件上。
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