| AVS 54th International Symposium | |
| Electronic Materials and Processing | Monday Sessions |
| Session EM-MoM |
| Session: | Organic Materials and Devices |
| Presenter: | J. Xiao, University of Nebraska-Lincoln |
| Authors: | J. Xiao, University of Nebraska-Lincoln A. Sokolov, University of Nebraska-Lincoln P.A. Dowben, University of Nebraska-Lincoln |
| Correspondent: | Click to Email |
Copper phthalocyanine (CuPc) is an organic semiconductor with a small instantaneous dipole, while poly(vinylidene fluoride with trifluoroethylene), P(VDF-TrFE), is a ferroelectric polymer with a strong intrinsic (reversible) dipole. We explored the band offsets of CuPc deposited on crystalline P(VDF-TrFE) copolymers through combined photoemission and inverse photoemission studies at different temperatures. We also fabricated a thin film CuPc to crystalline ferroelectric copolymer P(VDF-TrFE) heterojunction diode. The formation of a diode is expected from the band offsets between the two molecular systems. Dipole interactions are implicated at the interface between CuPc and P(VDF-TrFE), and affect the band offsets and resultant diode properties: the diode current is adjusted by application of an electric field, which in turn may be affected by the dipole orientation.