A comparative study of ZnO film and nanorods for ZnO/polyfluorene inorganic/organic hybrid junction

Both ZnO nanorods (NRs) and film were combined with spin-coated polyfluorene (PF) organic films to form ZnO/PF hybrid junctions on ITO glass substrates. A comparative study was performed through quantitative analysis of the as-grown hybrid junctions with ZnO film and NRs structure, respectively. In general, both devices exhibited a rectifying diode-like behavior as expected from the n-ZnO/p-PF nature. Nevertheless, the ZnO NRs based hybrid device has a great advantage over the film based device in view of interface quality and rectifying behavior. These results indicate that the ZnO NRs based inorganic/organic hybrid junctions is more suitable and preferred for the potential application in optoelectronic devices.