Organic thin film diode selected zinc phthalocyanine andplumbum phthalocyanine (ZnPc and PbPc) were mixed as the active layer of thedevice. The hybrid thin film diodes structure of Cu/ ZnPc+ PbPc/ Al wasprepared using a variety of coating methods

among them

the mass ratio of ZnPc∶PbPcwas 1∶1

4∶5 and 5∶4

respectively. The electrical tests and optical tests were carried out. Theresults show that three types of the hybrid thin film diodes have a rectifyingcharacteristic. Through the experimental analysis

it can be concluded thatwhen the mass ratio of the two materials is 1∶1

the carrier transport of the device is the fastest

and the appropriate contentof PbPc can reduce the height of the Schottky barrier

thus the carriermobility increasing. It is calculated that when the mass ratio of the twomaterials is 1∶1

the barrier height of the device is0.355eV

the influence factor is 18.21.