臺灣博碩士論文加值系統

本研究以鈦網為基板，利用陽極氧化法以及電泳沉積法製備二氧化鈦薄膜工作電極，並尋找工作電極成長二氧化鈦薄膜之最佳條件。實驗探討氧化時間、溶液的濃度、陽極氧化電流對成長膜厚的影響以及對染料敏化太陽能電池效能影響。實驗測試結果顯示：以0.035 M氟化銨水溶液、陽極氧化電流400 mA製備二氧化鈦薄膜工作電極，能改善開路電壓及短路電流提高光電轉換效率。

In this study, the working electrode of dye-sensitized solar cells (DSSCs) based on all titanium substrates were investigated. Experimentally, electrophoretic deposition and anodic oxidation method will be employed to fabricate the working electrodes of flexible DSSCs. The goals of the project aim to build a high performance electrode with low series resistance, highly conducting charge-transfer, high reduction catalytic activity and good stability. Experimental results show that the optimized anodization condition for preparing titanium dioxide (TiO2) on the titanium mesh is 0.035 M of ammonium fluoride, 400 mA of applied current.

摘要……………………………………………………………………....i
Abstract…………………………………………………………………..ii
誌謝……………………………………………………………………...iii
目錄……………………………………………………………………...iv
圖目錄…………………………………………………………………...vii
表目錄…………………………………………………………………...ix
第一章 緒論…………………………………………………………….1
1.1 前言………………………………………………………………....1
1.2 太陽能電池簡介與現況……………………………………………3
1.3 陽極氧化簡介與現況………………………………………………7
1.4 目的與動機…………………………………………………………7
第二章 文獻回顧與介紹…………………………………………………….8
2.1 染料敏化太陽能電池………………………………………………8
2.2 電泳沉積……………………………………………………………9
2.2.1 電泳沉積原理………………………………………………..9
2.2.2 電泳沉積方式……………………………………………......10
2.3 染料敏化太陽能電池結構與工作原理介紹………………………10
2.3.1 二氧化鈦……………………………………………………..12
2.3.2 工作電極……………………………………………………..14
2.3.3 對電極………………………………………………………..15
2.3.4 染料…………………………………………………………..16
2.3.5 電解質………………………………………………………..17
2.3.6 電池封裝……………………………………………………..17
2.4 陽極氧化鈦介紹……………………………………………………18
2.4.1 陽極氧化鈦工作原理………………………………………..19
2.4.2 陽極氧化鈦反應式…………………………………………..20
第三章 實驗方法與設備…………………………………………………….21
3.1 實驗材料……………………………………………………………21
3.2 染料敏化太陽能電池製備…………………………………………22
3.2.1 基板前處裡…………………………………………………..22
3.2.2 二氧化鈦懸浮液製備………………………………………..23
3.2.3 工作電極製備………………………………………………..25
3.2.4 對電極製備…………………………………………………..26
3.2.5 染敏流程……………………………………………………..26
3.2.6 液態電解質配製……………………………………………..27
3.2.7 DSSC封裝製程……………………………………………….28
3.2.8 光電轉換效率測量…………………………………………..29
3.3 陽極氧化工作電極製備……………………………………………30
3.3.2 陽極氧化二氧化鈦實驗流程………………………………..31
3.4 儀器設備介紹……………………………………………………....32
3.4.1 自動化電泳儀………………………………………………..32
3.4.2 光電轉換效率測量系統……………………………………..33
3.4.3 場發射式掃描式電子顯微鏡……………………………….33
3.4.4 研磨拋光技術……………………………………………….34
第四章 實驗結果與討論……………………………………………………35
4.1 電流對陽極氧化技術成長二氧化鈦薄膜之影響………………...35
4.1.1 電壓對薄膜成長反應關係……………….…………………36
4.1.2 電泳沉積薄膜於陽極氧化鈦基板………………………….37
4.1.3 薄膜附著性測試…………………………………………….38
4.1.4 薄膜阻抗測試……………………………………………….38
4.1.5 光學顯微鏡表面結構……………………………………….39
4.1.6 光學顯微鏡剖面結構……………………………………….40
4.1.7 SEM表面結構………………………………………………..41
4.1.8 SEM剖面結構……………………………………………….42
4.2 薄膜製程技術對DSSC效率之影響……………………………...43
4.2.1 電泳沉積薄膜對DSSC效率影響…………………………...43
4.2.2 陽極氧化薄膜對DSSC效率影響…………………………...44
4.2.3 電泳沉積薄膜於陽極氧化鈦基板對DSSC效率影響……...45
第五章 結論…………………………………………………………………47
參考文獻……………………………………………………………………..48

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