Conductive photoswitchable vanadium oxide nanopaper based on bacterial cellulose.

A bacterial cellulose mat was used as a template for the fabrication of conductive photoswitchable hybrid nanopaper by the incorporation of sol-gel synthesized vanadium nanoparticles. The resulting nanopaper, prepared through a green pathway, was able to photoinduce a reversible color change. Conductive properties at the nano- and macroscales were confirmed by electrostatic force microscopy and semiconductor analysis measurements, respectively.