The impact of trioxadecanoic acid on the performance of dye sensitized solar cells based titanium oxide nanoparticles

The effect of the addition of trioxadecanoic acid (TODS) on the performance of Dye sensitized solar cells (DSSCs) was studied. An increase of the overall light to current conversion efficiency was observed, due to a significant increase of the photocurrent density. The increase of the photocurrent density referred to the more homogeneous porous structure and the relevant increase of the surface area, which allowed higher amount of dye loading. This resulted in a positive impact on the enhancement of the photo current density. The impedance spectroscopy showed that the addition of TODS resulted in a decrease of the charge transfer resistance of the cell, which explained by increasing the charge regeneration.