Dye-sensitized solar cell utilizing NiPd-rGO counter electrode: comparative study of deposition technique and effect of NiCl2 concentration on its performance

This paper reports the performance of dye-sensitized solar cell (DSSC) utilizing NiPd-rGO composite as counter electrode of the device. Various method of preparation of the counter electrode have been employed. It is found that the device utilizing the counter electrode prepared via liquid phase deposition technique (LPD) performs the highest power conversion efficiency that is 1.18 %. Next, the effect of the concentration of nickel chloride (NiCl2) on the performance of the device utilizing the composite prepared via LPD technique has been investigated. The device with the counter electrode prepared using of 50 mM NiCl2 demonstrates the highest efficiency of 1.07 %.