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| 研究生： |
蔡宗霖 Tsung-lin Tsai |
|---|---|
| 論文名稱： |
以Ⅱ-Ⅵ族量子點修飾氧化鋅奈米柱之光電性質分析 Optical Properties Study of Adsorption of Ⅱ-Ⅵ Nanocrystallines on ZnO Nanorods Surfaces |
| 指導教授： |
陳良益
Liang-Yih Chen |
| 口試委員: |
劉進興
none 吳季珍 none |
| 學位類別： |
碩士 Master |
| 系所名稱： |
工程學院 - 化學工程系 Department of Chemical Engineering |
| 論文出版年： | 2008 |
| 畢業學年度： | 96 |
| 語文別： | 中文 |
| 論文頁數： | 101 |
| 中文關鍵詞： | 氧化鋅 、水熱法 、奈米柱 |
| 外文關鍵詞： | ZnO, hydrothermal, nanorod |
| 相關次數： | 點閱：306 下載：1 |
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本研究是以水熱法以醋酸鋅與六甲基四胺為反應物，溫度為90oC下，成長高順向性氧化鋅奈米柱於氧化銦錫透明導電玻璃基板上。在型態上，以掃描式電子顯微鏡進行分析；在光學性質上，使用紫外光/可見光吸收光譜儀與螢光光譜儀進行分析，以探討反應條件對氧化鋅奈米柱在形態與光學特性的影響。在進行高深寬氧化鋅奈米柱的成長上，於反應溶液中加入聚乙烯亞胺，以多次成長進行。在量子點披覆於氧化鋅奈米柱表面的實驗方面，為了有效披覆量子點，先利用3-巰基丙酸或11-巰基十一酸進行氧化鋅奈米柱表面改質，使具有雙官能基的表面活性劑羧基接上氧化鋅表面，再利用另一端的硫醇鍵鍵結於量子點的表面。此結果對於日後研發量子點敏化太陽能電池有著很高的應用價值。
In this study, hydrothermal method was employed to grow well-aligned ZnO nanorods on ITO/glass substrate using zinc acetate dehydrate and methenamine as reactants. Field-emission scanning electron microscope (FE-SEM) was used to observe the morphologies of ZnO nanorods and UV-visible and photoluminescence spectroscopy were used to take the optical properties in different growth conditions. Multiple growth stages were employed to grow high aspect ratio ZnO nanorods by adding some polyethyleneimine (PEI). In order to attach quantum dots on the surface of ZnO nanorods, 3-mercaptopropionic acid or 11-mercaptoundecanoic acid with carboxyl and thiol functional groups were used to modify the surface of ZnO nanorods. The carboxyl group can anchor on the surface of ZnO nanorods and thiol group can catch quantum dots. This technique is very useful to develop quantum dots sensitized nanorods solar cells in the future.
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