本研究利用商業化二氧化鈦(degussa P-25)製備出奈米管狀物為前軀體，並透過水熱方法進一步獲得較P-25更細緻且具更大比表面積(>100 m2/g)的奈米顆粒，並和P-25所製作的光電極做比較，最後利用電化學方法探討電解質組成對其極限擴散電流及白金/電解質界面阻力的影響，並探討電池組成(導電玻璃、染料、二氧化鈦膜厚度)、4-tert-Butylpyridine處理與否對其轉化效率的影響。

　　以此奈米顆粒製作的光電極與P-25做比較，在染料為mercurochrome，入射光強度為83 mW/cm2情況下，最大轉化效率可達2.05%，出現在膜厚3.9 m時；而P-25則在膜厚6.9 m時達最大轉化效率1.94%。由電流(Jsc)-膜厚曲線及轉化效率(%)-膜厚曲線來看，利用此奈米顆粒確實可得較P-25大的閉環電流(Jsc)及轉換效率(%)，證明以具高比表面積的奈米結晶性半導體材料供染料吸附確實可有效提升電池整體效能。

　　In the present work, nanocrystalline TiO2 particles were prepared for the fabrication of the anode electrodes of the dye-sensitized solar cell. Commercial TiO2 (Degussa P-25) was used as the starting materials to prepare nanotubes precursor from hydrothermal treatment. Nanocrystalline TiO2 particles which are smaller than P-25 and have high surface areas (SBET > 100 m2/g) were obtained by hydrothermally treating the nanotubes. The electrode made of nanoparticles were compared with that made of P-25. The cell anode constructed with different conducting glasses , dyes, TiO2 film thicknesses and additives were examined on the basis of the solar cell efficiency.

　　By sensitizing the anode with mercurochrome and exposing under a light intensity of 83 mW/cm2, the electrode made of nanoparticles reached a efficiency of 2.05% with a film thickness of 3.9 m. While that made of P-25 reached 1.94% with a film thickness of 6.9 m. Using the nanoparticles dye-sensitized solar cells can have larger short-circuit current and efficiency than those using P-25. The high-surface-area nanocrystalline semiconductor materials developed in the present work have been shown to improve dye adsorption, thus leading to an increase of the solar cell efficiency.

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