本研究旨在以鎘離子電泳方式增進半導體敏化材料硒化鎘(CdSe)在二氧化鈦(TiO2)光電極上的覆蓋率和沉積量。製程中以連續離子層反應法(Sucessive Ionic Layer Adsorption and Reaction, SILAR)將光電極浸泡在陰、陽離子前驅液中，使CdSe沉積在多孔性TiO2結構內。然而在一般的SILAR程序中離子不易擴散至孔洞內部，敏化材料易於孔洞外部成長，導致孔洞堵塞而降低其在TiO2表面的覆蓋率。為了改善此情形，本研究以電泳法來促進離子在孔洞內部的擴散，將TiO2光電極浸泡在含Cd2+離子的溶液中，以白金為對電極，並在TiO2光電極上施加負偏壓，藉由Cd2+的電泳作用來增進其在中孔洞TiO2表面的吸附，使得孔洞內外皆可完整覆蓋Cd2+，接著將光電極浸泡至Se2-溶液中，於孔隙結構內反應，製得高覆蓋率的CdSe半導體敏化層。
在固態CdSe敏化太陽能電池的製備上，電泳法輔助成長的程序，對光電極上CdSe敏化劑的沉積量及覆蓋率皆有大幅增加的效果，元件的光電轉化效率由0.04%提升至0.81%。同樣地，將電泳技術應用在液態CdSe敏化太陽能電池上，亦可將元件的光電轉化效率由1.28%提升至2.12%。

In this study, electrophoresis is used to improve the coverage rate and the deposition amount of CdSe semiconductor on TiO2 surface. Successive Ionic Layer Adsorption and Reaction is a process usually applied to deposit CdSe on porous TiO2 photoelectrode. In the process photoelectrode is immersed in the Cd2+ and Se2- precursor separately and form CdSe in the channel. However, the inefficiency of ion diffusion within the channel results in a deposition on the outer surface and the blockage of pores. Therefore, electrophoresis is exploited aimed at improving the ion diffusion. In the experiment, a platinum plate and a TiO2 photoelectrode set as the counter electrode and the working electrode. Both electrodes are immersed in a Cd2+ solution and applied a negative potential applied to the working electrode promotes Cd2+ adsorption on the TiO2 surface. Together with the subsequent immersion in Se2- solution, CdSe sensitized photoelectrode of high coverage rate is obtained.
Apply electrophoresis method on the solid state and liquid state CdSe sensitized solar cells, the results show that modified TiO2 photoelectrode has a great enhance of the amount of CdSe deposition and coverage, which promote photo current significantly. By electrophoresis method, the efficiency of solid state CdSe sensitized solar cell has increase from 0.04% to 0.81%. And the efficiency of liquid state CdSe sensitized solar cell has increase from 1.28% to 2.12%

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