Research Article

Study of Electrical Transport Properties of Thin Films Used as HTL and as Active Layer in Organic Solar Cells, through Impedance Spectroscopy Measurements

Table 1

Values of mobility estimated from IS measurements carried out on ITO/P3HT:PCBM/Al structures applying a 0.3 V reverse bias, with P3HT:PCBM films prepared at different pressures using chlorobenzene as solvent.

Pressure (cm2/Vs) (cm2/VsF)

146mbar1.8 × 10−43.0 × 104
746mbar3.8 × 10−41.1 × 105
3746mbar2.5 × 10−32.5 × 106