常壓電漿及旋鍍種晶層對水熱沉積二氧化鈦膜層於染料敏化太陽能電池之應用研究

Study of TiO2 Films with Plasma and Spin-coating Seed Layer for Dye Sensitized Solar Cell Application of Synthesis by Hydrothermal Process

鐘明宏(Ming-Hung Chung)

指導教授 ： 劉文仁

義守大學/理工學院/材料科學與工程學系/碩士(2016年)

摘要

本實驗目的為使用水熱法在15mm x 15mm FTO透明導電玻璃上成長二氧化鈦(TiO2)奈米棒(TNRs)用於染料敏化太陽能電池的光電陽極。FTO透明導電玻璃使用旋鍍法在上面塗上一層銳鈦礦結構的二氧化鈦(TiO2)薄膜作為種晶層。1.75g 草酸鈦鉀(K2TiO(C2O4)2)加入含有去離子水(de-ionized (DI) water)和二甘醇(diethylene glycol, DEG)的混合溶液中，並劇烈攪拌30分鐘。在180℃下9小時進行水熱成長二氧化鈦(TiO2)奈米棒(TNRs)。搭配N719染料及含碘離子的電解液組裝成染料敏化太陽能電池元件，再用I-V量測儀測量光電轉換效率。目前實驗最佳TNRs膜層的最佳光電轉換效率為5.96%。在這項研究中，膜層使用最佳參數具有高比表面積和良好對齊的TNRs形態因此可顯著提高光轉換效率。

關鍵字

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並列摘要

The purpose of this work is to use a hydrothermal process to synthesize titanium dioxide (TiO2) nano-rods (TNRs) film on 15 mmx15 mm size of fluorine doped tin oxide (FTO) conductive glass as the photo-anodes of dye-sensitized solar cells (DSSCs). A TiO2 seed layer with anatase structure was deposited on a fluorine doped tin oxide (FTO) coated glass substrate by spin coating. 1.75g potassium titanium oxalate (K2TiO(C2O4)2)was added to the mixture solvent of 100mL containing de-ionized (DI) water and diethylene glycol (DEG), and vigorously stirred for 30 min. The hydrothermal synthesis was conducted at 180 °C for 9 h for the growth of the TiO2 nanowire arrays. N719 dyes as well as the iodine ions electrolyte were served as the dye-sensitized solar cell (DSSC) components, and the DSSC devices were analyzed by I-V meters to determine the photo-conversion efficiency. Up to date, the optimal TNRs films revealed the best photo-conversion efficiency of 5.96% under illumination of simulated AM1.5 solar light (100 mWcm−2). In this study, the films synthesized using optimum process parameters with a high specific surface area and well-aligned TNRs morphology can significantly improve the photo-conversion efficiency.

並列關鍵字

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參考文獻

[26]. 彭懷夫，中孔性二氧化鈦薄膜於染料敏化太陽能電池之應用，國立東華大學，2003年。

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