Inkjet printing high performance flexible electrodes via a graphene decorated Ag ink

•The exfoliated graphene sheets were uniformly interspersed into the silver oxide precursor network through a one-step in-situ reaction.•Graphene was used as the reinforcing phase to improve the bending resistance of the electrodes.•The formation of a dense conductive network to avoid a significant conductivity decrease by graphene doping.•Inkjet printing to form highly flexible electrodes.