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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16214
標題: | 以紅、綠、藍光芴基衍生物為單體之陽極氧化鋁模板輔助白光高分子奈米管合成與鑑定 White Light-Emitting Nanotube from Template-Assisted in situ Polymerization with the Blends of RGB Fluorene Derivatives |
作者: | Han Han 韓涵 |
指導教授: | 汪根欉(Ken-Tsung Wong) |
關鍵字: | 白光,奈米管,原位聚合,陽極氧化鋁,模板輔助, white light,nanotube,fluorene,in situ polymerization,AAO,template-assisted, |
出版年 : | 2012 |
學位: | 碩士 |
摘要: | 伴隨奈米與照明科技的發展,以光學奈米元件作為替代光源日漸受到重視,其中白光奈米物件的製備,因其組成的複雜性,尤具挑戰。本論文中,我們調控功能性中心的能隙,設計出三種以芴基衍生物為發光中心之熱聚合單體,分別為紅光4VB-DFTP、綠光4VB-DFBTA及藍光4VB-T3,藉由陽極氧化鋁模板輔助與紅、綠、藍光材料莫耳比率的精準控制,成功地製備出D65白光奈米管與白光奈米陣列。首先利用模板浸潤法,單體溶液因毛細作用力滲入模板孔洞,再利用單體原位聚合法,進入模板通道內之單體經熱聚合而形成交鏈之高分子奈米管。順應所設計分子的光電特性,我們利用掃描及穿透式電子顯微鏡以確認奈米物件之表面形貌與內部結構,而螢光特性與能量轉移現象則透過雷射掃描共軛聚焦顯微鏡與時間解析單光子計數系統加以觀測分析。此外,我們所製備的奈米陣列具有超疏水及高附著特性,利用接觸角遲滯現象,能進一步應用於微量液體運輸。本文之單體設計概念,不僅利於將特殊光電特性的分子簡易地轉化為一維奈米物件,其螢光與半導體特性的芴基分子架構更具有應用於奈米光電元件的潛力。 The white light-emitting nanotubes were achieved by energy transfer from the host matrix, 4VB-T3, to the guest dopants, 4VB-DFBTA and 4VB-DFTP. Not only that the decreasing luminescence of the donor paralleled the increasing luminescence of the acceptors but also the evident decrease of the donor’s lifetime recorded by time-correlated single photon counting technique confirmed the effective host-guest energy transfer. The Commission Internationale de l'Eclairage 1931 coordinates estimated from localized photoluminescence spectra of the fine-tuned white light nanotubes shows the high homogeneity of D65 daylight emission. One of the applications of the synthesized nanoarray in liquid transportation with its superhydrophobicity and strong surface adhesion was demonstrated by contact angle hysteresis. The novelty of this approach existed in producing high quality multi-color or white light-emitting nanotubes (HQWLE-NTs) and nanoarrays by a simple and high throughput method for further applications in nanoscale optoelectronic devices. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16214 |
全文授權: | 未授權 |
顯示於系所單位: | 化學系 |
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ntu-101-1.pdf 目前未授權公開取用 | 3.5 MB | Adobe PDF |
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