The fabrication of Cu nanowire/graphene/Al doped ZnO transparent conductive film on PET substrate with high flexibility and air stability

The fabricating of transparent conductive films with low resistance, high transparency, flexibility and air stability is significant in the study of flexible electronics. In this work, Cu nanowire/Graphene/Al doped ZnO (Cu/Gra/AZO) composite transparent conductive films were fabricated on PET substrate at room temperature. It is found that this composite film has a high transmittance of 74% at 550 nm, a low sheet resistance of 9.40 X/sq and good air stability. In this sandwich structure electrode, Cu nanowires (NWs) play an important role for ensuring the low resistance of the composite film, and the addition of graphene further reduces the resistance plus protects Cu NWs from oxidation. Moreover, the top layer AZO can protect the graphene layer from external damage and improve its stability. (C) 2017 Elsevier B.V. All rights reserved.