This work creates semi-transparent composite film for photo electrochemical solar cell (PECSC) that used nanocomposite materials based on reduced graphene oxide as a counter electrode (CE) due to its high conductivity and electro catalytic activity. Platinum is too expensive and rare to use in PECSC.Graphite was transformed into graphene oxide using the Modified Hummer method and then chemically reduced. Variations in reduced graphene oxide dispersion in a number of organic solvents were seen using ultraviolet-visible spectroscopy. The PECSC counter electrodes were spin-coated using reduced graphene oxide, polyvinyl pyrrolidone, and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) composite film on fluorine-doped tin oxide (FTO) substrates. XRD and SEM techniques were used to characterise the semi-transparent film of counter electrode. It has been demonstrated that PECSC with counter electrodes made of reduced graphene oxide based nanocomposite can be used in solar cell applications.