合成二氧化鈦奈米粒子、奈米管、奈米柱應用於染料敏化太陽能電池

Synthesis of TiO2 nanoparticles、nanotubes and nanorods for Dye-Sensitize Solar Cell

李俊毅(Chun-Yi Lee)

指導教授 ： 王宏文

中原大學/理學院/化學系/碩士(2007年)

https://doi.org/10.6840/cycu200700422

摘要

本研究利用溶膠-凝膠法和電泳鍍膜版法製備出二氧化鈦奈米管或奈米柱，以二氧化鈦澄清凝膠當作前驅液探討不同pH值對於二氧化鈦形成晶相的改變。分析製程中在室溫下40℃-50℃水浴時持續攪拌，形成奈米二氧化鈦的金紅石粒子之原因。討論利用電泳鍍模版法製作奈米管和奈米柱之機制及其表面形態。利用FE-SEM、TEM、XRD等儀器觀測其結構、粒子大小及結晶相，與金紅石/銳鈦礦殼-核二氧化鈦奈米柱之結構 。
微波水熱方法獲得二氧化鈦奈米粉體,組成太陽能電池之光電極。探討三種光電池組成，添加黏著劑poly(ethylene glycol)薄膜、二氧化鈦奈米管存在於薄膜上， 和二氧化鈦奈米管包覆在薄膜內三種組成。結果呈現奈米管在薄膜上之組成，對敏化太陽能電池之轉化效率效果最佳。

關鍵字

電泳鍍模版法 ； 溶膠-凝膠法 ； 二氧化鈦奈米管 ； 敏化太陽能電池

並列摘要

Titanium dioxide nanotubes and nanorods were synthesized via template sol-gel and electrophoretic deposition method. The transformation into rutile or anatase from as-synthesized gelation derived from different compositions was discussed. The formation of rutile phase obtained by stirring at 40~50℃ in the water bath was strongely related to the pH values. The structures, particle sizes of nanotubes and rutile/anatase core-shell titanium dioxide nanorods were characterized by wide-angle X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and transmission electron microscope (TEM).
Titanium dioxide nanoparticles were prepared by microwave hydrothermal method, which were subsequently used in photoelectrode for dye-ssnsitizes solar cells (DSSCs). The photoelectrodes with three different structures were designed and constructed. Coating of titanium dioxide nanoparticles suspension with/without poly(ethylene glycol) as a binder, titanium dioxide nanotubes on the films, and titanium dioxide nanotubes in the films were compared. The solar energy conversion efficiency of nanotubes on film shows improved performance.

並列關鍵字

sol-gel ； electrophoretic deposition template method ； dye-ssnsitizes solar cells ； titanium dioxide nanotubes

參考文獻

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