Effect of TiO2 thickness on dye sensitized solar cell performance

A dye solar cell with a dimension of 6 × 2 cm is fabricated with thickness of 40 µm, 80 µm and 120 µm of TiO
2
by smearing it on an ITO coated glass. It is then tested under the average solar irradiance and temperature of 693.69 w/m2, 44.4°C respectively. Based on experimental investigation it is found that TiO
2
of 40 µm produces V
oc
= 0.21V, I
sc
= 121.28µA, Fill Factor (FF) = 1.1845, while the 80 µm produces V
oc
= 0.16 V, I
sc
= 69.89µA, Fill Factor (FF) = 1.49 and TiO
2
layer with thickness of 120µm produces Voc = 0.00063 V, Isc = 0 mA, Fill Factor (FF) = 0. From these results it shows that the best charge generation is from the thinner TiO
2
thickness layer which is the 40um compare to with the other size.