Effect of Doping a Rare-Earth Oxide on the Photovoltaic Parameters of Dye -Sensitized Solar Cells.

Abstract

Yb 2 O 3-doped TiO 2 were prepared using mechanochemical process to obtain Dye Sensitized Solar Cells (DSSCs) photoanodes. The parameters of DSSC devices were calculated. The study showed that the addition of Yb 2 O 3 improved the open-circuit voltage via a p-type effect, whereas, a negative effect on the generated photocurrent was observed. This reduction in photocurrent was attributed to increasing crystal defects as a result of increasing the concentration of Yb 2 O 3 dopants.