Organic Solar Cells Using Tin (II) Phthalocyanine as Donor Material

The performance of organic solar cells (OSC) based on tin (II) phthalocyanine (SnPc)/C60 heterojunction was investigated by changing the thickness of SnPc. The effect of the film thickness of SnPc on the electrical characteristics of the device was systematically studies. Optical field distribution inside the OPV cell was also simulated to gain insight into the mechanism responsible for different SnPc thicknesses. The structure, indium tin oxide (ITO)/PEDOT: PSS (10 nm)/MoO3(10 nm)/SnPc(15 nm)/C60(40 nm)/bathophenanthroline (BPhen) (10 nm)/Ag, has a power conver- sion efficiency of 0.79% at 1 sun, standard 1.5G solar illumination.