研究生: |
林煒舜 Wei-Shun Lin |
---|---|
論文名稱: |
羥基喹啉鋁錯合物組合反應及5-胺基菲羅啉聯吡啶釕錯合物光電轉換分析 Tris-(8-hydroquinoline)aluminum complex assembly and ruthenium bis(2,2'-bipyridine)-5-aminophenanthroline photochemical application. |
指導教授: |
王忠茂
Wang, Chong-Mou |
學位類別: |
碩士 Master |
系所名稱: |
化學系 Department of Chemistry |
論文出版年: | 2014 |
畢業學年度: | 102 |
語文別: | 中文 |
論文頁數: | 67 |
中文關鍵詞: | 羥基喹啉鋁錯合物 、胺基菲羅啉聯吡啶釕錯合物 |
英文關鍵詞: | Tris-(8-hydroquinoline)aluminum, ruthenium bis(2,2'-bipyridine)-5-aminophenanthroline |
論文種類: | 學術論文 |
相關次數: | 點閱:120 下載:1 |
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本論文探討內容包括兩部分,第一部分探討以掃描穿隧顯微術(STM)觀察羥基喹啉鋁錯合物(tris-(8-hydroxyquinoline)aluminum,簡稱AlQ3)逐步修飾於ITO導電玻璃表面之即時影像變化,第二部分則是以導電模組與磁性模組原子力顯微術(簡稱CM-AFM與MFM)探討5-胺基菲羅啉聯吡啶釕錯合物(簡稱Ru(bpy)2(NH2-phen)2+)的光電轉換性質及其應用潛力。實驗結果顯示:當羥基喹啉鋁錯合物逐步修飾於ITO導電玻璃表面時,基材表面的粗糙度會隨修飾進行而呈現系統性改變。我們也發現Ru(bpy)2(NH2-phen)2+可藉由偶氮化修飾法修飾於奈米碳管表面。當吸附於碳管表面的Ru(bpy)2(NH2-phen)2+微粒受到藍光(波長:473 nm)照射時,MFM影像所顯現的相位差會產生明顯變化,其變化程度比受到綠光照射時更為顯著,並會隨外加電壓增加而增加,顯示Ru(bpy)2(NH2-phen)2+受光激發時,其電子組態會由單重態轉變為參重態,致使其磁性增強並顯現光電流,極具應用潛力。
This thesis focuses on two experiments: one is the study of stepwise assembly of tris-(8-hydroxyquinoline)aluminum (AlQ3) on indium-doped tin oxide (ITO) with STM techniques, and the other, on bis-(2,2’-bypyridyl) 5-aminophenanthroline ruthenate(II) (Ru(bpy)2(NH2-phen)2+) regarding its photochemical properties such as photo-induced magnetic conversion and current rectification with magnetic-mode and conducting-mode microscopic techniques (MFM and CFM). Experimental results show that as 4-aminoanline is modified on ITO via diazotization-cathodic reduction processes, the adsorbate can form diazo linkage with 8-hydroxyquinoline. The resulting adsorbate can thus form complex with aluminum ion in the presence of two excess 8-hydroxyquinoline molecules. Besides, we find that Ru(bpy)2(NH2-phen)2+ can be modified on multiwall carbon nanotube (CNT) via diazotization reaction. The resulting carbon nanotube (Ru@CNT), as excited by blue light (ex: 473 nm ), changes greatly in phase shift, more significantly than exposed to green light. The amplitude of the phase shift is a function of the electric bias (Vb) applied to the host substrate (ITO), increasing with an increase in Vb. These results suggest that the spin of Ru(bpy)2(NH2-phen)2+ might change from singlet to triplet as being photoexcited. Ru@CNT can also conduct electric current to flow between two separated ITO (gated by a 1 m-wide groove) as exposed to blue light, showing application potential in photochemical current rectification.
Keywords: Tris-(8-hydroquinoline)aluminum、ruthenium bis(2,2'-bipyridine)-5-aminophenanthroline.
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