Optimization of photovoltaic conversion performance of a TiO2 based dye sensitized solar cells (DSSCs)

Abstract Combined theoretical and experimental investigations are carried out to achieve an optimum photovoltaic (PV) conversion performance ( η ) of a DSSC. All studies done in tiberCAD software, wherein simulated parameters calibrated correlated with the measured DSSC fabricated using nearly spherical shape nanosize TiO 2 working electrode. For two types dye molecules, theoretically optimized electrode’s thicknesses were 6 μ m ∼ 6.45%) 18 7.51%) for DB LEG4 dyes, respectively. Relatively better short-circuit photocurrent density (J SC was found although it had lower light absorbance compared dye. The investigation revealed that charge recombination is 7 times higher than dye, this high becomes one most critical factors affecting overall incident photon current efficiency.