title: Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures.
abstract: Novel sp(3) rich diamond-like carbon nanorod films were fabricated by a hot filament chemical vapour deposition technique. The results are indicative of a bottom-up synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 microm and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapour-liquid-solid mechanism is proposed that accounts for the morphological aspects at the microscale and nanoscale. Investigation of field emission properties of fabricated nanorods reveals a low turn-on field of about 4.9 V microm( - 1) at 1 nA and a high field-enhancement factor.
authors.affiliation: Institute for Functional Nanomaterials, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00931, USA.
authors.forename: Deepak
authors.initials: D
authors.lastname: Varshney
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Makarov
authors.forename: Puja
authors.initials: P
authors.lastname: Saxena
authors.forename: Adolfo
authors.initials: A
authors.lastname: González-Berríos
authors.forename: James F
authors.initials: JF
authors.lastname: Scott
authors.forename: Brad R
authors.initials: BR
authors.lastname: Weiner
authors.forename: Gerardo
authors.initials: G
authors.lastname: Morell