微波水熱法製備二氧化鈦薄膜電極應用於染料敏化太陽能電池之研究

Fabrication of Ti02 Electrode via Microwave Hydrothermal Process and Its Application on Dye-Sensitized Solar Cells

彭立德(LI-TE PENG)

指導教授 ： 王宏文

中原大學/理學院/化學研究所/碩士(2008年)

https://doi.org/10.6840/cycu200900565

摘要

二氧化鈦是一種高用途的半導體，可應用於光催化、太陽能電池以及一般工業上的半導性材料。本研究利用溶膠-凝膠法及水熱法製備出二氧化鈦奈米粒子，為了快速合成出具有結晶性得二氧化鈦粉體比傳統水熱法具有較小的粒徑以及較大的表面積。利用XRD、RE-SEM以及TEM等儀器鑑定其結晶相，結構及粒子大小。
應用微波水熱法所獲得的二氧化鈦奈米粉體，將其製備成太陽能電池之電極。塗佈的二氧化鈦漿料以PEG作為黏結劑，探討增加PEG
的含量對薄膜電極的影響，微波水熱法及傳統水熱法所製備的薄膜電極硬度差異，以及薄膜厚度對太陽能轉換效率的關係。最後，將應用微波水熱法所製備的粉體與市面上販售的P25粉體製備成薄膜電極，並探討薄膜對轉換效率的結果。

關鍵字

二氧化鈦 ； 微波水熱 ； 敏化太陽能電池

並列摘要

‘Titanium dioxide is a highly useful semiconductor which is used for photocatalyst, solar cell and industry of semiconductor. Titanium dioxide nanoparticles were synthesized via sol-gel and hydrothermal method in this study. In order to rapidly synthesize titanium dioxide nanoparticles in anatase phase, we adopt novel microwave hydrothenual method to carry out our experiments. CDiystalline titanium dioxide nanoparlicles were successfully fabricated in this study using microwave hydrothenual process, which resulted in smaller particle sizes and greater surface areas than those of conventional hydrothermal process. The structures, particle sizes and surface areas were characterized by wide-angle X-ray diffraction ( XRD ), field emission scanning electron microscope (FE-SEM), and transmission electron microscope (TEM).
Titanium cli oxide nanoparticles prepared by microwave hydrothermal method were subsequently used in photoelectrode for dye-ssnsitizes solar cells (DSSCs). Poly(ethylene glycol) as a binder was utilized in the coating of titanium dioxide nanoparticles suspension. The influence on solar cell efficiency by increasing PEG contents, film hardness, and methods of microwave hydrothermal and conventional hydrothermal process were investigated. The differences between P25 and microwave synthesized nanoarticles were also investigated in terms of their conversion efficiency of solar energy.

並列關鍵字

TICO2 ； dye-sensitized solar cells ； microwave hydrothermal

參考文獻

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