Dr. Ian McNeil
Degree Award Date
Dye Sensitized Solar Cells, Cyclic Step Chronopotentiometry
Chemistry | Physical Chemistry
A dye sensitized solar cell was created using dye extracted from raspberries, a TiO2 semiconductor paste, and an iodine electrolyte solution for the purpose of performing cyclic step chronopotentiometry. A voltage was applied and removed to observe how the voltage across the solar cell rose and decayed. The decays were fit to a biexponential curve and the constants were compared between the various trials to analyze trends between the time the voltage is on and off, a light being shown or not, 30 μA and 30 mA, and a electrolyte solution with or without lithium. The biexponential demonstrated how there are lifetimes for electrons diffusing out of the solar cell on the scale of seconds.
Hanks, Benjamin, "Cyclic Step Potentiometry of Dye Sensitized Solar Cells" (2022). Honors Projects. 247.