|
VU e-Archive >
Undergraduate Honors Research >
Physics and Astronomy Department Honors Program >
Honors in Physics >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1803/737
|
| Title: | Progress towards a quantum dot photovoltaic : nanocrystal deposition on structured titanium dioxide nanotubes |
| Authors: | Emmett, Kevin |
| Keywords: | quantum dot
photovoltaic
titanium dioxide
nanotubes |
| Issue Date: | Apr-2008 |
| LC Subjects: | Photovoltaic cells.
Semiconductor nanocrystals.
Nanotubes.
Nanostructured materials.
Thin films.
Titanium dioxide.
Solar energy. |
| Abstract: | While this project did not successfully produce a working photovoltaic device, significant progress has been made in the individual components of the system. This thesis describes two of those components: fabrication of an ordered TiO2 thin film as electron conducting layer, and deposition of nanocrystals onto the TiO2surface. The anodized titanium nanotubes are a significant improvement over the earlier template technique. Additionally, electrophoretic deposition presents a novel approach to nanocrystal deposition techniques and is a promising alternative to the current chemical linking procedure. However, significant new approaches to imaging the deposited nanocrystals must be developed to verify surface coverage by these deposition techniques, particularly due to the highly ordered structure of the TiO2 thin films. Future work will be directed at completing the solar cell device by depositing a hole conducting layer on top of the nanotube array. Nanocrystal-sensitized solar cells may soon prove to be viable alternative to silicon photovoltaics.
College of Arts & Science |
| URI: | http://hdl.handle.net/1803/737 |
| Appears in Collections: | Honors in Physics
Honors in Physics
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|
