Poly(9,9-dihexylfluorene)/ZnO Nanoparticles Based Inorganic/Organic Heterojunction Structure: Electrical and
Abstract:
ZnO nanoparticles in size of -5 nm were synthesized by wet chemical method, P-type (9,9-dihexylfluorene) (PFH) and the synthesized n-type ZnO nanoparticles were used to fabricate PFH/ZnO heterojunction structure using spin coating method. The current-voltage characteristic of the heterojunction demonstrates the typical p-n junction rectifying behavior, but such rectifying behavior disappeared in vacuum, which is considered to be related to the oxygen in ZnO. The heterojunction shown an fast and stable response to UV and blue light. The responsivity of heterostruture can be tuned by the bias. The conductivities of organic/inorganic heterojunction increase with the increase of temperature, and the derived active energy (Ea) decreased linearly with the increase of bias.
