研究生: |
鍾治弘 Chung, Chih-Hung |
---|---|
論文名稱: |
紅外光光譜於異質接面共軛有機高分子薄膜形貌之探討 The characterization of thin-film morphologies on bulk-heterojunction conjugated polymer films by infrared spectroscopy |
指導教授: |
郭宗枋
Guo, Tzung-Fang |
學位類別: |
碩士 Master |
系所名稱: |
理學院 - 光電科學與工程研究所 Institute of Electro-Optical Science and Engineering |
論文出版年: | 2010 |
畢業學年度: | 98 |
語文別: | 中文 |
論文頁數: | 99 |
中文關鍵詞: | 薄膜形貌 、共軛高分子 、電荷轉移 |
外文關鍵詞: | thin film morphology, conjugated polymer, charge transfer |
相關次數: | 點閱:88 下載:1 |
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本論文主要是以反射式紅外光光譜儀研究有機共軛高分子材料之薄膜形貌。透過反射式紅外光光譜儀對垂直表面的分子偶極矩敏感的特性,可以得知高分子共軛平面相對於基板的翻轉情形。因此,我們可以用來分析有機共軛高分子poly(3-hexylthiophene) (P3HT)以及C60的衍生物[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)在不同溶劑、不同退火溫度及不同混合比例下的薄膜形貌。以Chloroform當溶劑下,純P3HT的共軛平面會較平行於基板;摻混PCBM後,P3HT的共軛平面會隨著溫度變化而有明顯的翻轉情形且會有代表電荷轉移的新的吸收峰產生。若能釐清薄膜形貌與電荷轉移能力的對應關係,將有助於提昇有機元件的效率。
The main topic in this thesis is to study the thin-film morphologies of conjugated polymer films by infrared spectroscopy. Due to the sensitivity of reflection-absorption-infrared-spectroscopy to the molecular dipole moment which is vertical to the substrate, we can realize the orientation of polymer conjugated plane on the substrate. By analyzing the thin film morphologies of poly(3-hexylthio-phene) (P3HT) and [6,6]-phenyl- C61-butyric acid methyl ester (PCBM) in different solvents, different annealing temperature and different mixing ratio. Usimg Chloroform for solvent, the conjugated plane of P3HT was parallel to the substrate. After doping PCBM into P3HT, the orientation of conjugated plane changed strongly with the variation of temperateure, and the new peak due to charge transfer was found. By understanding the relationship between thin film morphologies an charge transfer, we can improve the efficiency of the organic devices.
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