Publication date: 1 May 2016
Source:Thin Solid Films, Volume 606
Author(s): Hye-Mi Jung, Sukkee Um
Highly oriented crystalline hybrid thin films primarily consisting of Magnéli-phase VO2 and conductive graphene nanoplatelets are fabricated by a sol–gel process via dipping pyrolysis. A combination of chemical, microstructural, and electrical analyses reveals that graphene oxide (GO)-templated vanadium oxide (VOx ) nanocomposite films exhibit a vertically stacked multi-lamellar nanostructure consisting of horizontally aligned vanadium oxide nanowire (VNW) arrays along the (hk 0) set of planes on a GO template, with an average crystallite size of 41.4x composite semiconducting films, which have an sp3/sp2 bonding ratio of 0.862, display thermally induced electrical switching properties in the temperature range of −x composite semiconducting films can be used in advanced thermo-sensitive smart sensing/switching applications because of their outstanding thermo-electrodynamic properties and high surface charge density induced by the planar-type VNWs.
Source:Thin Solid Films, Volume 606
Author(s): Hye-Mi Jung, Sukkee Um