臺灣博碩士論文加值系統

此篇論文是染料敏化太陽能電池工作電極製備的相關研究。工作電極的塗層厚度、均勻性、表面修飾均會影響染料敏化太陽能電池之能源轉換效率。本研究探討工作電極塗層製備方法、多層二氧化鈦結構堆疊與工作電極表面修飾對染料敏化太陽能電池性能之影響，我們亦將著重於網版印刷製成實作。使用不同二氧化鈦塗層製作方式須搭配使用不同配方的塗佈染料，其中網印法使用的漿料所需之黏度與刮刀法所使用的漿料黏度高。研究利用P25與P100奈米顆粒調配製合適塗佈印刷之漿料並比較EC等TiO2漿料，依據不同參雜濃度來比較光電轉換效率，P25與P100粉末配製而成漿料以後者形成的塗膜製密性較佳，染料的吸附量較多，所得能源轉換效率也較高。使用平面印刷方法製備電極中，網印速度為11 mm/s的印刷參數下，製備的塗層均勻度較佳，我們亦可藉由多層二氧化鈦結構堆疊，使得塗層達到較佳的厚度。在P100摻雜0.5g時其效率高達了4.77%，乙基纖維素摻雜量為0.25wt%時其效率達到了4.86%。

This work studies the preparation of the working electrode of the dye-sensitized solar cells. The thickness of the electrode of the working electrode, the uniformity of the coating layer, the surface condition of the electrode will affect the photoelectric conversion efficiency of the dye-sensitized solar cells. The effects of the screen printing parameters used for the preparation of the working electrode and the multilayer working electrode structure on the photoelectric conversion efficiency of the dye-sensitized solar cells were investigated. The screen printing technique requires a relatively high viscosity coating paste, compared to the coating paste for doctor blading method. This study used P25 and P100 TiO2 nanoparticle to prepare a suitable coating and printing paste. The uniformity of the coating layer is formed using the screen printing technique with the squeegee coating speed of 11 mm s-1, and we can also stack the multilayer TiO2 nanostructure to achieve a better thickness of the coating. The efficiency was as high as 4.77% when P100 was doped with 0.5g, and the efficiency was 4.86% when the amount of ethylcellulose was 0.25wt%.

摘要....i
Abstract........ii
誌謝....iii
目錄....iv
表目錄...vii
圖目錄...viii
第一章 序論....1
1.1前言..1
1.2 染料敏化太陽能電池簡介........2
1.3 研究動機.....3
第二章 理論與文獻回顧.....4
2.1 太陽能電池簡介....... 4
2.1.1 太陽能電池種類......4
2.1.2太陽光譜特性........6
2.1.3太陽能電池原理.......7
2.2 二氧化鈦基本性質......8
2.2.1 二氧化鈦基本結構....8
2.3 染料敏化太陽能電池....10
2.3.1 染料敏化太陽能發展歷史......10
2.3.2 染料敏化太陽能工作原理與傳輸損失......10
2.3.3 染料敏化太陽能電池之結構.....13
2.2.4 塗佈技術...18
第三章 實驗步驟與設備....20
3.1實驗藥品與儀器設備.....20
3.1.1 實驗藥品...20
3.1.2 實驗儀器設備.......21
3.2實驗步驟......23
3.2.1 基板清洗...23
3.2.2 製備二氧化鈦光陽極..23
3.2.3對電極製作..23
3.2.4染料與電解液之製備...23
3.2.5元件封裝....24
3.3分析儀器應用原理.......25
3.3.1紫外光極可見光吸收光譜儀(UV-visible)..25
3.3.2場發射掃描式電子顯微鏡分析....25
3.3.3染料敏化太陽能電池之光電轉換效率.......26
3.3.4電化學交流阻抗分析儀(Electrochemical Impedance Spectroscopy, EIS)....28
3.3.5入射光電轉換效率測量儀(Incident Photon Conversion Efficiency, IPCE)..32
第四章 結果與討論.34
4.1 二氧化鈦薄膜之特性分析........34
4.2 染料敏化太陽能電池的特性之分析.39
4.2.1參雜二氧化鈦P100之紫外光-可見光分光光譜分析....39
4.2.2參雜二氧化鈦P100染敏電池元件效率之分析.40
4.2.3參雜二氧化鈦P100染敏電池交流阻抗分析...41
4.2.4參雜二氧化鈦P100染敏電池IPCE之分析....42
4.2.5參雜乙基纖維素染敏電池元件效率之分析...43
4.2.6參雜乙基纖維素染敏電池元件交流阻抗之分析........44
4.2.7參雜乙基纖維素染敏電池元件IPCE之分析...45
第五章 結論......46
未來展望.47
參考文獻.48
Extended Abstract.......52

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