Application of Graphene Oxide and TiO₂ in the Fabrication of Dye Sensitized Solar Cells Module by Electrode Modification

Abstract

The use of graphene oxide nanosheets as a counter-electrode material substituting platinum in dye-sensitized solar cell (DSSC) shows the cheap way of fabricating DSSC with increase in conversion efficiency. The incorporation of graphene oxide in active electrode was increased the conversion efficiency of DSSC significantly. The DSSC was fabricated, consists of graphene-TiO2 as an active electrode and compared to cell only consist of TiO2 as an active electrode, while using carbon as a counter electrode. The DSSC fabricated with electrolyte solution and organic dye, and then they were tested for their photovoltaic performance.

Graphene-Based Materials for Photoanodes in Dye-Sensitized Solar Cells

“…Since rGO sheets are usually small in size and soluble in various solvents, coating methods, such as dip-coating and spinning coating, are used to fabricate DSSC electrodes (Hong et al, 2008;Zhang et al, 2011;Jeon and Shin, 2013). Also, because their surfaces are chemically modified, rGO sheets are used as additives to improve the electron transfer in semi-conducting material layers (Morales-Torres et al, 2012;Prakash et al, 2012). CVD synthesized graphene sheets have excellent transparency and electrical conductivity and can be directly transferred from the synthesis substrate to suitable transparent substrates and used as electrodes to collect electrons (Wang et al, 2008;Song et al, 2013;Yang et al, 2013).…”