Table 2: Photovoltaic parameters of the DSSCs with N719 : 4L in different molar ratios under AM 1.5 G sunlighta.

Dyestuff coadsorbent molar ratio (mA cm−2) (V)FF (%)

Device AN71915.650.760.708.36
Device BN719-4L
1 : 0.25
16.390.770.708.83
Device CN719-4L
1 : 0.50
15.270.760.718.21
Device DN719-4L
1 : 1
15.720.750.698.10

Performances of DSSCs were measured with 0.25 cm2 working area.