Fabrication of Graphene-Based Nanostructured Thin Films with Mid-Infrared Photoresponse Properties

Abstract

Graphene shows great potential as an advanced building block for fabricating varied graphene based nanostructured films together with other metal and metal oxide nanomaterials. In the current work, a new approach was developed to fabricate flexible, transparent conductive films via layer-by-layer (LbL) assembly of oppositely charged reduced graphene oxide (RGO) nanosheets. We further fabricated transparent conductive hybrid films via LbL assembly of oppositely charged RGO nanosheet and platinum ( Pt ) nanoparticle as well as silica ( SiO 2) nanoparticle. It was found that the graphene based nanostructured films showed different mid-infrared photoresponse properties. Moreover, the photoresponse performance could be manipulated by the power and distance between two electrodes.