title: ZnO nanowire arrays: synthesis, optical and field emission properties.
abstract: Nanowire arrays of zinc oxide were synthesized on zinc foil by a simple thermal evaporation process. Morphologies and sizes of the synthesized nanostructures were varied by varying the reaction time and the surface roughness of the substrate. Self-catalytic liquid-solid mechanism was proposed for the growth of nanowires. ZnO nanostructures exhibited a strong UV emission at approximately 382 nm attributed to the band edge emission along with a defect related broad green emission at approximately 513 nm. These nanowire arrays exhibits good field emission property.
authors.affiliation: Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India.
authors.forename: Tandra
authors.initials: T
authors.lastname: Ghoshal
authors.forename: Subhajit
authors.initials: S
authors.lastname: Biswas
authors.forename: Soumitra
authors.initials: S
authors.lastname: Kar
authors.forename: S K
authors.initials: SK
authors.lastname: De