氧化鋁與氧化鈦奈米管的製作與應用研究

Abstract

本研究利用陽極處理法，製作具規則性排列之鋁陽極處理膜 (anodic aluminum oxide, AAO)與鈦陽極處理膜 (anodic titanium oxide, ATO)，多孔性材料均具有大表面積的特性，其中AAO，具有較佳的機械強度，適用於模板材料。本研究利用AAO為模板並製出線徑為60nm的金-矽共晶奈米線。ATO具有超親水特性與半導體的光電特性，適用於表面自我清潔的材料與太陽能電池的材料。本研究利用ATO的奈米管特性，使水滴於ATO表面不需經紫外光照射，即可達接觸角為0o的目的。而於太陽能電池的陽極材料應用方面，此大表面積之ATO膜可提升光敏化染料於陽極材料上的吸附量。鋁板與鈦板經陽極處理後，可使AAO奈米管的孔徑控制在10 nm 至 300 nm範圍內，管長控制在1 μm 至 150 μm範圍內，管密度約為108至1011 pore/cm2；而 ATO的管徑可控制為15 nm、100 nm、125 nm等三種，管長為0.3 μm 至 60 μm範圍內，管密度約為108至1011 pore/cm2。

We made alumina and titania nanotube by anodization process. The anodic aluminum oxide is called AAO which has strong strength of structure that is suitable for template applications. The 60 nm diameter Au-Si eutectic nanowire was fabricated using AAO template by casting process. The anodic titanium oxide is called ATO which has super hydrophilic and semi-conductor properties that is suitable for the self-cleaning and photo-electronics materials. In our study, because the capillarity of ATO nanotube the contact angle between water and ATO is closed to 0o without UV irradiation. We also using ATO as dye sensitized solar cell anode to absorb the sensitized dye. A large surface of ATO improves the dye absorbance on the solar cell anode. The AAO pore size could be controlled in the 10 nm to 300 nm range, tube length is in the 1μm to 150μm range, and pore density is in the 108 to 1011 pore/cm2. Also, The AAO pore size could be controlled to 15 nm、100 nm、125 nm, tube length is in the 0.3μm to 60μm range, and pore density is in the 108 to 1011 pore/cm2.