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系統識別號 U0026-2708201517122500
論文名稱(中文) 聚(3-己基噻吩)於奈米維度自組裝研究
論文名稱(英文) Studies on the Nano-Dimensional Self Assembly of Poly(3-hexylthiophene)
校院名稱 成功大學
系所名稱(中) 光電科學與工程學系
系所名稱(英) Department of Photonics
學年度 103
學期 2
出版年 104
研究生(中文) 鄒玠荏
研究生(英文) Chieh-Jen Tsou
學號 L76024030
學位類別 碩士
語文別 中文
論文頁數 103頁
口試委員 指導教授-鄭弘隆
口試委員-周維揚
口試委員-唐富欽
中文關鍵字 聚(3-已基噻吩)  自組裝  奈米纖維  有效共軛鏈長 
英文關鍵字 Poly(3-hexylthiophene)  self-assembly  nanofiber  effective conjugation length 
學科別分類
中文摘要 本論文是利用不同溶劑成長聚(3-已基噻吩)自組裝(Self-assembly)奈米結構,並分析其薄膜特性。藉由原子顯微鏡與掃描式電子顯微鏡量測聚(3-已基噻吩)奈米結構。本研究發現利用苯甲醚做為溶劑可以形成奈米網狀結構,而利用氯仿做為溶劑會形成微區結構。
薄膜X光繞射分析,不論使用哪一個溶劑,聚(3-已基噻吩)薄膜主要為(100)面排列。紫外-可見光吸收光譜分析,波長位置在603 nm (A0 band)吸收強度由小到大依序為苯甲醚、二氯甲烷、對二甲苯、氯仿,故本研究推測使用氯仿成長聚(3-已基噻吩)奈米結構,其平均有效共軛鏈長相對較長。
導電式原子力顯微鏡分析,施加正電壓時,利用苯甲醚做為溶劑的薄膜表面形貌與表面電流圖是可以互相對應。奈米纖維邊緣交界處的載子遷移率約為0.05 cm2/Vs。施加正電壓時,利用氯仿做為溶劑的薄膜表面形貌與表面電流圖沒有直接的對應關係。奈米結構邊緣交界處與奈米結構上的載子遷移率都可達到約0.1 cm2/Vs。
拉曼光譜分析,1380 cm-1代表C-C伸縮振動(v2 band),1448 cm-1代表C=C伸縮振動(v1 band)。根據密度泛函理論(Density functional theory)計算,指出有效共軛鏈長(Leff)增加會造成v1 band中心波數呈現指數衰減。針尖增強拉曼光譜分析,本研究發現利用633 nm的激發光源量測時會出現低頻波峰與高頻波峰,而在奈米網狀結構上的低頻中心波數與高頻中心波數都比微區結構來的小,推測奈米網狀結構的有效共軛鏈長(Leff)較長。
英文摘要 In this study, we investigated the effects of solvents on the self-assembly of poly(3-hexylthiophene) (P3HT) polymer chains during film formation from solution. The morphologies and microstructures of the resulting P3HT films were analyzed by using absorption spectroscopy, atomic force microscope (AFM), and conductive-AFM (C-AFM). Nanofibers and micro-domains were observed by using AFM in the P3HT films made with anisole and chloroform (CF), respectively. The absorption spectra indicated that the P3HT films made with CF exhibited the strongest band at 603 nm, thereby indicating that this film had the longest effective conjugation length as suggested by theoretical calculations. The topography of the anisole specimen by C-AFM is consistent with its current mapping. The correlation between the nanoscale morphology and the C-AFM current mapping of P3HT is discussed.
論文目次 中文摘要 I
Extended Abstract III
誌謝 XI
目錄 XIII
表目錄 XVI
圖目錄 XVII
第1章 緒論 1
1-1 前言 1
1-2 聚(3-己基噻吩)自組裝文獻探討 2
1-3 研究動機 4
第2章 實驗方法與分析儀器 5
2-1 實驗材料 5
2-1-1 有機半導體材料 5
2-1-2 有機溶劑 5
2-2 元件製備 7
2-2-1 基板清潔 7
2-2-2 溶液製備 7
2-2-3 旋轉塗佈聚(3-已基噻吩)溶液 8
2-2-4 滴落塗佈聚(3-已基噻吩)溶液 8
2-2-5 熱蒸鍍成長銀電極 8
2-3 實驗分析儀器 8
2-3-1 原子力顯微鏡(Atomic Force Microscope, AFM) 8
2-3-2 拉曼光譜儀(Raman Spectroscopy Spectrometer) 9
2-3-3 紫外-可見光吸收光譜(Ultraviolet - Visible spectroscopy) 10
2-3-4 薄膜X光繞射儀(Thin Film X-ray Diffractometer) 10
2-3-5 掃描式電子顯微鏡(Scanning Electron Microscopy, SEM) 10
第3章 聚(3-己基噻吩)自組裝薄膜分析 13
3-1 選擇不同溶劑與時間成長聚(3-已基噻吩)奈米結構 13
3-1-1 利用旋轉塗佈法成長聚(3-已基噻吩)奈米結構 13
3-1-2 利用滴落塗佈法成長聚(3-已基噻吩)奈米結構 19
3-1-3 測試不同基板成長聚(3-已基噻吩)奈米結構 23
3-2 薄膜X光繞射分析 25
3-3 紫外-可見光吸收光譜分析 27
3-3-1 滴落塗佈法自組裝聚(3-已基噻吩)薄膜 27
3-3-2 旋轉塗佈法成長聚(3-已基噻吩) 薄膜 28
3-4 導電式原子力顯微鏡分析 30
3-4-1 苯甲醚(Anisole)溶劑之聚(3-已基噻吩)薄膜 30
3-4-2 氯仿(CF)溶劑之聚(3-已基噻吩)薄膜 32
3-5 拉曼光譜分析 34
3-5-1 微拉曼光譜分析 34
3-5-2 針尖增強拉曼光譜分析 35
第4章 結論與未來展望 96
4-1 結論 96
4-2 未來展望 99
參考文獻 100
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