effect of large tio2 nanoparticles as light scatter in matrix of small nanoparticles to improve the efficiency in dye- sensitized solar cell

in this study, we investigated the effect of using large tio2 nanoparticles in the matrix of small nanoparticles to improve the performance of dye-sensitized solar cells (dsscs), as light scatter to increase the light harvesting. the mixed powder was deposited by electrophoretic deposition (epd) on fto (f-sno2 coated glass). it is shown that adding small quantity of larger nanoparticles can enhance the performance of dsscs. this paper also studies the deferential scanning calorimetry (dsc) of mixed powders to detect the phase transitions, due to the change of weight percentage between large and small nanoparticles.