Enhancement of dye sensitized solar cell by adding gold nanoparticles

Dye sensitized solar cell (DSSC) were fabricated and enhancement of the DSSC conversion efficiency was achieved. The UV-Vis data showed high absorbance of AuNPs+N719 dye compared to N719 dye alone; which means that the immersion of AuNPs in the N719-dye solution increases the total absorbance of the dye.Also the relative increase of the short circuit current density after the adding AuNPs was 76%. In the same way the relative increase of the open voltage circuit after adding AuNPs was 6.7%. The conversion efficiency of the DSSC (FTO /TiO2/ dye) was 1.75 while was 2.8 of the enhanced DSSC with AuNPs (FTO/ TiO2/Dye+AuNPs).