Mathematics Faculty Proceedings, Presentations, Speeches, Lectures
Event Name/Location
46th Midwest 39th Great Lakes Joint Regional ACS Meeting / St. Louis, MO
Date Range
October 19-22, 2011
Presentation Date
2011
Document Type
Poster
ORCID ID
0000-0001-7817-4308
Description
The photoanode of a dye sensitized solar cell is typically a mesoporous titanium dioxide thin film adhered to a conductive glass plate. In the case of TEC-8 glass, an approximately 500 nm film of tin oxide provides the conductivity of this substrate. During the calcining step of photoanode fabrication, tin diffuses into the titanium dioxide layer. Scanning Electron Microscopy and Electron Dispersion Microscopy are used to analyze quantitatively the diffusion of tin through the photoanode. At temperatures (400 to 600 °C) and times (30 to 90 min) typically employed in the calcinations of titanium dioxide layers for dye sensitized solar cells, tin is observed to diffuse through several micrometers of the photoanode. The transport of tin is reasonably described using Fick's Law of Diffusion through a semi-infinite medium with a fixed tin concentration at the interface. Numerical modeling allows for extraction of mass transport parameters that will be important in assessing the degree to which tin diffusion influences the performance of dye sensitized solar cells.
NSUWorks Citation
Cabell, Julienne and LeSuer, Robert J., "Diffusion of tin from TEC-8 conductive glass into mesoporous titanium dioxide in dye sensitized solar cells" (2011). Mathematics Faculty Proceedings, Presentations, Speeches, Lectures. 424.
https://nsuworks.nova.edu/cnso_math_facpres/424