以可撓性材料為基板的染料敏化太陽能電池由於其低成本、應用性廣及具良好的光電轉換效率而受到矚目，但可撓式基板無法應用於高溫製程，而未經過高溫燒結的TiO2電極會因其TiO2顆粒之間連結不佳而導致電子傳輸困難，再加上顆粒狀的結構在承受外加彎曲應力時容易破碎，使得電池整體表現不佳。本實驗以P25 TiO2粉末和氫氧化鈉進行水熱法，製備具有較佳的電子傳輸特性以及可撓韌性的TiO2奈米纖維(TiO2 nano-fiber, TNF)來改善以上問題，並對TiO2纖維進行表面處理，以提升電極染料吸附量，增加電池的光電轉換效率。
本實驗在水熱法製程後，以攪拌酸洗製程取代傳統酸洗製程，較能去除水熱法製程殘留的鈉離子，避免鈉離子對後續燒結製程產生不良影響。合成的TNF直徑約50-200 nm，長度約10-13 μm，以此未經表面處理的TNF作為工作電極組成染料敏化太陽能電池，TNF電極的染料吸附量為24.43 μmol/g，電池的轉換效率為1.08 %；將TNF以濃度為1 M的硝酸處理8小時後，可以提升電極染料吸附量至36.71 μmol/g，轉換效率可增加到1.63 %；結合不同表面處理後，可以進一步將效率提升到1.65 %。在彎曲測試中，當彎曲曲率半徑達到1.02 cm，電池效率仍可維持未彎曲時的98%以上，說明本實驗所製備之TNF電池在彎曲情況下也能正常發揮功能。

摘要 I
Abstract II
致謝 III
總目錄 IV
表目錄 VII
圖目錄 VIII
第一章 緒論 1
1.1 前言 1
1.2 太陽能電池簡介與發展 2
1.3 研究動機 4
第二章 文獻回顧與工作原理 6
2.1 染料敏化太陽能電池簡介與基本原理 6
2.2 染料敏化太陽能電池各層探討 7
2.2.1 工作電極 7
2.2.2 表面修飾染料 8
2.2.3 電解液 10
2.2.4 對電極 12
2.3 TiO2結構對染料敏化太陽能電池效率之影響 13
2.4 太陽能電流電壓輸出特性 16
2.5 交流阻抗原理與等效電路 18
2.5.1 交流阻抗原理 18
2.5.2 染料敏化太陽能電池之等效電路 21
第三章 實驗材料與方法 28
3.1 實驗藥品與實驗儀器 28
3.1.1 實驗藥品 28
3.1.2 實驗儀器 29
3.2 實驗步驟 30
3.2.1 二氧化鈦奈米纖維製備 30
3.2.2 基板清潔 30
3.2.3 二氧化鈦漿料配製 30
3.2.4 工作電極之製備 31
3.2.5 染料浸泡 31
3.2.6 對電極 31
3.2.7 電池組裝 32
3.3 分析儀器 32
3.3.1 全電池光電轉換效率量測 32
3.3.2 全電池光源電化學阻抗光譜分析 33
3.3.3 染料吸附量量測 33
第四章 結果與討論 37
4.1 二氧化鈦奈米纖維自支撐薄膜 37
4.1.1 酸洗製程對薄膜的影響 38
4.1.2 燒結參數對二氧化鈦膜的影響。 38
4.2 抽濾成膜法製備TNF工作電極特性研究 40
4.2.1 抽濾成膜法工作電極 40
4.3 酸處理製程對TNF電極影響之研究 41
4.3.1 不同種類酸處理對TNF電極之影響 41
4.3.2 酸處理時間對TNF電極之影響 43
4.3.3 酸處理濃度對TNF電極之影響 44
4.4 其它表面處理對TNF電極影響之研究 46
4.5 TNF與TNP的複合結構 47
4.6 彎曲測試 48
第五章 結論 70
5.1 實驗結論 70
5.2 展望 71
參考文獻 73

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