以芴基衍生物為單體之模板輔助螢光高分子奈米管合成與鑑定

Abstract

本論文中，我們設計出以芴基衍生物為發光中心之四種可熱聚合單體 (VB-DTACN、VB-DFBTA、VB-FNPD與VB-T3)，並以陽極氧化鋁 (anodized aluminum oxide, AAO) 模板輔助法製備一維奈米物件，包含紅、藍、綠三色螢光奈米管、紅藍兩截式螢光奈米管與藍色螢光奈米陣列。我們先使用模板浸潤法 (wetting template method) 將單體溶液藉由毛細作用力引入模板孔洞後，再透過單體原位聚合法 (in situ polymerization method) 使單體經熱聚合過程於模板的一維通道中形成交鏈高分子奈米管。我們利用所設計分子之光致發光特性，將這些一維奈米物件進行螢光特性之分析，以及奈米管間和兩截式奈米管內之能量轉移行為之討論。利用本論文單體設計概念，不僅可用於轉化含有其他光學或電學特性之分子成為一維奈米物件，且本論文已製備出之材料擁有的發光特性與半導特性，也可在將來直接轉移到光電元件中應用。

We report here four polymerizable monomers VB-DTACN, VB-DFBTA, VB-FNPD and VB-T3 to prepare one dimensional (1-D) nano-objects. By means of the AAO (anodized aluminum oxide) template assisted fabricaton, elongated nano-objects, including red, green, and blue (RGB) emissive nanotubes, segmental nanotubes, and blue emissive nano-array, were obtained. Combining the wetting template method with in situ polymerization method, the monomer solution penetrated into the AAO pores and transformed to cross-linked polymeric nanotubes after thermal annealing. Based on the photoluminescence property of our materials, we conducted some fluorescence characterizations and energy transfer observations both between red and blue nanotubes, and within segmental nanotubes. Ultilizing the idea of monomer design in this thesis, other electroactive, or photoactive organic molecules can possibly also be applied to transform in to the dispersed 1-D nanostructure or nanoarray morphology. Moreover, the inherent semiconducting property of the fluorene-based molecular skeleton makes our nanotubes possible to be applied in nanoscale photo-electronic devices in the future.