臺灣博碩士論文加值系統

染料敏化太陽能電池為第三世代多晶矽太陽能電池，主要材料由二氧化鈦構成，有製程簡易、成本低等優點。奈米碳管具備良好的電子傳輸、電子壽命長及熱穩定性高等特性，適合作為光陽極複合材料。
　　研究中透過添加不同濃度的奈米碳管於二氧化鈦，最後以最佳的複合結構加入硼酸探討工作電極。首先，將多壁性奈米碳管在醇類溶液中作分散前置處理，再將奈米碳管添加於調配好的二氧化鈦中混合出不同濃度的漿料於旋轉平台上攪拌，利用奈米碳管/二氧化鈦與純二氧化鈦漿料塗布三層在透明導電玻璃基板製成光陽極複合薄膜；摻雜硼之混合粉末是利用去離子水、二氧化鈦進行水熱反應後，加入奈米碳管，完成製備漿料。最後透過不同的薄膜厚度、濃度及有無摻雜硼酸進行比較與量測分析電池特性。
　　研究結果表明，奈米碳管引入電極通過多孔薄膜提供電子傳輸路徑，能增強電子的傳輸速度，抑制電子電洞複合。以奈米碳管/二氧化鈦複合漿料與純二氧化鈦漿料混合塗布成TCC結構的染敏電池，其光電轉換效率為3.96%。最後藉由前兩者複合漿料加入硼酸，硼卡在二氧化鈦的縫隙中，提升了光陽極層的導電性，光電轉換效率為4.14%，相較於奈米碳管/二氧化鈦複合薄膜，效率約提升了0.18%。

DSSCs are third generation polycrystalline silicon solar cells, main material are made of TiO2, processed simple and low cost. Carbon nanotubes (CNTs) have nice electron transmission, electronic life and hot stability, these are very suitable as the photoanode material for DSSCs.
In this study, used the coating method prepared the DSSC of carbon nanotubes (CNTs) / doped boric acid with TiO2 conductive film was successfully improved overall efficiency. The steps as follows: First, multi-walled carbon nanotubes (MWCNTs) made the dispersive treatment, then different concentration of carbon nanotubes are added to TiO2 and mixed to form a slurry. Second, used the best structure add to boric acid. The sauce stirred on the blender for twelve hours and coated from a transparent conductive glass substrate. Finally, dye-sensitized solar cells characteristics were compared by comparing the different DSSCs with different film thicknesses, concentrations, and doped boric acid. The research show that, carbon nanotubes (CNTs) added into TiO2 could provide electronic transmission of the way, and raise transmission speed, decrease the electron and hole recombination. The CNTs / TiO2 film and TiO2 film mixed composition TCC structure had the highest efficiency 3.96%. Finally, the CNTs / doped boron with TiO2 film, boron stuck in the gap of TiO2 enhance conductivity, the best efficiency 4.14%, compared with CNTs / TiO2 film, the efficiency raised 0.18%.

摘要…i
Abstract…ii
誌謝…iii
目錄…iv
表目錄…vi
圖目錄…vii
第一章 緒論…1
1.1 前言…1
1.2 研究動機與目的…1
第二章 文獻回顧…2
2.1 染料敏化太陽能電池（Dye-sensitized solar cell, DSSC）…2
2.1.1 太陽能電池發展歷史…2
2.1.2 染料敏化太陽能電池的元件結構…3
2.1.2.1 電池工作原理 (Principle of operation)…4
2.1.2.2 鉑金對電極 (Pt Counter Electrode)…6
2.1.2.3 電解液（Electrolyte）…6
2.1.2.4 染料 (Dye)…8
2.1.2.5 半導體薄膜工作電極（Working Electrode）…10
2.1.3 透明導電玻璃基板 10
2.2 二氧化鈦之基本特性簡介…11
2.3 奈米碳管（Carbon nanotube, CNT）…13
2.4 硼酸（Boric acid）…16
第三章 實驗方法…17
3.1 實驗藥品與儀器設備…17
3.1.1 實驗藥品…17
3.1.2 實驗儀器設備…18
3.2 實驗流程…19
3.2.1 製備二氧化鈦與奈米碳管複合漿料…20
3.2.1.1 奈米碳管分散處理…20
3.2.1.2 調配二氧化鈦與奈米碳管複合漿料…20
3.2.2 製備染料敏化太陽能電池…21
3.2.2.1 透明玻璃導電基板清洗…21
3.2.2.2 製備二氧化鈦與奈米碳管複合薄膜…22
3.2.2.3 調配染料與工作電極敏化…23
3.2.2.4 調配電解液…23
3.2.2.5 製備對電極…23
3.2.2.6 染料敏化太陽能電池的封裝…24
3.3 製備硼酸加入複合漿料實驗流程圖…25
3.3.1 添加硼酸製備混合粉末…26
3.3.1.1 添加硼酸於二氧化鈦與奈米碳管複合漿料…26
3.4 實驗儀器與特性分析…27
3.4.1 複合薄膜之特性分析…27
3.4.1.1 場發射掃描式電子顯微鏡分析…27
3.4.2 染料敏化太陽能電池之特性分析…28
3.4.2.1 電壓-電流特性量測…28
3.4.2.2 全波段入射光子轉換效率量測…31
3.4.2.3 電化學阻抗頻譜分析量測…32
3.4.2.4 紫外光/可見光光譜儀…37
3.4.2.5 能量色散X射線光譜…38
第四章 結果與討論…39
4.1 場發射掃描式電子顯微鏡之複合薄膜分析…39
4.1.1 二氧化鈦與奈米碳管複合薄膜表面分析…39
4.1.2 摻雜硼酸之二氧化鈦與奈米碳管複合薄膜表面分析…41
4.1.3 二氧化鈦與奈米碳管複合薄膜截面分析…42
4.1.4 摻雜硼酸之二氧化鈦與奈米碳管複合薄膜截面分析…43
4.2 染料敏化太陽能電池量測分析…44
4.2.1 奈米碳管單層與雙層薄膜塗布結構量測分析…44
4.2.2 奈米碳管三層薄膜塗布結構量測分析…46
4.3 奈米碳管TCC複合結構在不同濃度下各項量測分析…50
4.3.1 奈米碳管TCC複合結構在不同濃度下J-V curve分析…50
4.3.2 奈米碳管TCC複合結構在不同濃度下EIS、IPCE與UV-Vis分析…51
4.4 摻雜硼酸對染料敏化太陽能電池之影響…54
4.4.1 摻雜不同克數的硼酸於DSSCs之J-V curve分析…54
4.4.2 摻雜不同克數的硼酸於DSSCs之EIS、IPCE與UV-Vis分析…55
4.4.3 摻雜0.1g硼酸與濃度0.01wt%奈米碳管之元素成分分析…58
第五章 結論…59
參考文獻…60
Extended Abstract…63

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