Improved Utilization of Photogenerated Charge Using Fluorine-Doped TiO(2) Hollow Spheres Scattering Layer in Dye-Sensitized Solar Cells.
We demonstrate a strategy to improve utilization of photogenerated charge in dye-sensitized solar cells (DSSCs) with fluorine-doped TiO(2) hollow spheres as the scattering layer, which improves the fill factor from 69.4% to 74.1% and in turn results in an overall efficiency of photoanode increased by 13% (from 5.62% to 6.31%) in comparison with the control device using undoped TiO(2) hollow spheres. It is proposed that the fluorine-doping improves the charge transfer and inhibition of charge recombination to enhance the utilization of the photogenerated charge in the photoanode.
School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457.
SourceACS applied materials & interfaces : 2012 Jul 6 pg
Pub Type(s)JOURNAL ARTICLE