Cd-doped TiO2 nanofibers as effective working electrode for the dye sensitized solar cells

Abstract Cd-doping and nanofibrous morphology are proposed to improve the TiO 2 performance as photoanode in the dye-sensitized solar cells. Practical results indicate that Cd ions interfered with the crystalline structure of TiO 2  nanofibers, causing an increase in the absorption in the visible spectrum, transport of the charges, and reduced re-bonding between the charge carriers in the barrier area between the electrolyte and the working electrode, compared to the un-doped titania nanofibers. It is interesting that a DSSC based on a Cd-doped TiO 2  nanofiber working electrode has a double power conversion efficiency (2.945%) compared with the pristine titanium oxide nanofibers-based cell; 1.54%.