APPLICATION OF GRAPHENE OXIDE AND Ti02 IN THE FABRICATION OF SOLAR CELL MODULE BY ELECTRODE MODIFICATION

Abstract

The use of graphene oxide nanosheets as a counter-electrode material substituting platinum in dye-sensitized solar cells (DSSC) shows the cheap way of fabricating DSSC and also shows highly increase in conversion efficiency. Graphene oxide nanoparticles were synthesized by Hummer's method and were applied on conducting glass slides by drop casting method. The DSSC Active electrode composed of graphene oxide-P25 and for comparison cell using P25 only as an active electrode also fabricated. The incorporation of graphene oxide in active electrode was increased the conversion efficiency of DSSC significantly. The DSSC was fabricated, consists of graphene-Ti02 as an active electrode and compared to cell only consist of Ti02 as an active electrode, while using carbon as a counter electrode. The doctor blade method was used to fabricate the active electrodes, where Ti02 nanoparticles were synthesized by sol-gel method. Then whole DSSC was fabricated with electrolyte solution containing 0.5M Potassium iodide mixed with 0.05M iodine in water free ethylene glycol and organic dye, and then they were tested for their characterization (XRD, FT-IR, SEM and UV Absorbance) and performance (I-V characterization).