Controlled Growth of TiO2 Nanotubes on Conducting Glass

Controlled Growth of TiO2 Nanotubes on Conducting Glass
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TiO2 纳米管在导电玻璃上的受控生长

DOI:
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发表时间:
2011
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通讯作者:
L. Schmidt‐Mende
L. Schmidt‐Mende
中科院分区:
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文献类型:
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作者:
J. Weickert;C. M. Palumbiny;M. Nedelcu;T. Bein;L. Schmidt‐Mende

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我们报告纳米管二氧化钛上的导电玻璃基板上的一个紧凑的二氧化钛层。直流溅射Ti膜厚度在0.2 ~ 2 μm之间,在含有乙二醇的氟化铵溶液中阳极氧化得到了高度规则的结构。系统地分析了不同阳极氧化参数的影响,揭示了完全控制管长、管径、间距和管壁厚度是可能的。内管直径和管之间的间距可以通过阳极氧化场控制。管壁厚度可以使用不同的阳极氧化浴温度进行调整。可以通过溅射适当的Ti层来调节管的长度。所得的TiO 2结构可以容易地用于聚(3-己基噻吩)-TiO 2杂化太阳能电池和固态染料敏化太阳能电池。与阳极化钛箔相比,所提出的几何形状允许制造可以正面照明(通过玻璃基板)的光伏器件。
We report on nanotubular TiO2 on top of a compact TiO2 layer on conducting glass substrates. Highly regular structures were obtained from anodization of DC sputtered Ti films of thicknesses between 0.2 and 2 μm in ammonium fluoride containing ethylene glycol solutions. The influence of different anodization parameters was systematically analyzed revealing that full control over tube length, diameter, spacing, and tube wall thickness is possible. Inner tube diameters and spacing between tubes can be controlled via the anodization field. Tube wall thickness can be tuned using different anodization bath temperatures. Tube length can be adjusted by sputtering appropriate layers of Ti. The resulting TiO2 structures can be readily used in poly(3-hexylthiophene)-TiO2 hybrid solar cells and solid state dye sensitized solar cells. In contrast to anodized Ti foils the presented geometry allows the fabrication of photovoltaic devices which can be frontside-illuminated (through the glass substrate).