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Thesis
Anodization growth and integration of titanium dioxide nanotubes in dye sensitized solar cells
Master of Science (M.S.), Drexel University
Jun 2011
DOI:
https://doi.org/10.17918/etd-3740
Abstract
Titanium dioxide nanotube (TNT) arrays have been successfully grown by anodization in a glycerol electrolyte. A growth rate of 1.4 [mu]m/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 [mu]m 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.
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Details
- Title
- Anodization growth and integration of titanium dioxide nanotubes in dye sensitized solar cells
- Creators
- Stefani Susilo - DU
- Contributors
- Kenneth K. S. Lau (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- Chemical (and Biological) Engineering [Historical]; College of Engineering (1970-2026); Drexel University
- Other Identifier
- 3740; 991014632311304721