Low-Temperature Aqueous Chemical Growth of Inorganic-Organic Hybrid Junction with ZnO Nanorods/Polyfluorene Structure


In this paper, we report the inorganic-organic hybrid junction synthesized on ITO glass substrate, which was consisted of an n-type ZnO nanorods (NRs) grown by low-temperature aqueous chemical growth method and a p-type Polyfluorene (PF) organic film fabricated by spin-coating. The results indicate that densely and uniformly distributed ZnO nanorods were successfully grown on the PF layer. The thickness of the PF layer plays a dominant role for the current–voltage (I-V) characteristic of the ZnO NRs/PF inorganic-organic hybrid junction device, and a p-n junction with obviously rectifying behavior was achieved with optimal PF layer thickness. The photoluminescence (PL) spectrum covering the broad visible range was obtained from the n-ZnO nanorods/p-polyfluorene (PF) structure, which was originated from the combination of the PF-related blue emission and the ZnO-related deep level emission.