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Int. J. Electroactive Mater. 5 (2017) 1-5

Synthesis of Reduced Graphene Oxide and Its Application as Counter Electrode in Dye-sensitized Solar Cell

M.Y.A. Rahman1*, A.S Sulaiman2, A.A. Umar2

1Institute of MIcroengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
2IMEN, UKM, Bangi, Selangor, Malaysia

*Email Address :

Abstract : Reduced graphene oxide (rGO) was prepared by using modified Hummers’ method as an alternative to costly platinum as a counter electrode for dye-sensitized solar cell (DSSC). The effect of weight percentage (wt.%) of GO on the morphology and performance of the DSSC has been investigated. The rGO samples were prepared with various wt.% GO, namely, 0.5, 1.5, 2.5, 3.5 and 4.5 wt.%. The field emission scanning electron microscopy (FESEM) images of the rGO reveal the presence of conductive and non-conductive regions represented by dark region and white strips, respectively. These rGO samples were applied in the DSSC of ITO/TiO2-N719/electrolyte/rGO. The DSSC using the 0.5 wt.% GO sample performed the highest photovoltaic parameters with the Jsc, V and η of 0.68 mA cm-2, 0.56 V and 0.06%, respectively due to the highest electronic conductivity.

Keywords : counter electrode,DSSC,hummers method,reduced graphene oxid