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Anodization growth and integration of titanium dioxide nanotubes in dye sensitized solar cells
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http://hdl.handle.net/1860/3740
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| Title: | Anodization growth and integration of titanium dioxide nanotubes in dye sensitized solar cells |
| Authors: | Susilo, Stefani |
| Keywords: | Chemical engineering
Titanium dioxide
Solar cells |
| Issue Date: | Jun-2011 |
| Abstract: | Titanium dioxide nanotube (TNT) arrays have been successfully grown by anodization in a glycerol electrolyte. A growth rate of 1.4 μm/h has been achieved, which is more than double that typically observed with tubes grown in glycerol. By adjusting anodization parameters, such as increasing anodization temperature (45 °C) with a small addition of water (5 vol%) and a high fluoride salt concentration (0.67 M), we found an optimized balance between field assisted oxide growth and chemical dissolution that allowed for the increase in growth rate. Nanotubes of 2.2 μm in length with 48.7 nm inner diameter have been obtained for 2 h of anodization time with uniform pore opening from top to bottom and relatively smooth outer walls. The TNT arrays have been integrated as photoanodes in dye sensitized solar cells and current-voltage measurements performed on these DSSCs showed that significant improvement in cell performance is expected with optimization of nanotube properties and solar cell fabrication techniques. |
| Description: | Thesis (M.S., Chemical engineering)--Drexel University, 2011. |
| URI: | http://hdl.handle.net/1860/3740 |
| Appears in Collections: | Drexel Theses and Dissertations
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