title: Modification of WO(3) thin films by MeV N(+)-ion beam irradiation.
abstract: In this paper, we report on modification of the structural, optical, vibrational, and surface morphological properties of 2 MeV N(+)-ion irradiated WO(3) thin films at different fluences (up to 1 × 10(15) ions cm(-2)). Although we observe irradiation induced grain growth, no structural phase transition takes place in the WO(3) films. These are accompanied by a systematic reduction in the optical band gap of the films. These observations are corroborated by our independent micro-Raman and optical absorption spectroscopy studies. We have made an attempt to correlate these results with MeV ion-matter interaction.
authors.affiliation: Institute of Physics, Sachivalaya Marg, Bhubaneswar 751 005, India.
authors.forename: R
authors.initials: R
authors.lastname: Sivakumar
authors.forename: C
authors.initials: C
authors.lastname: Sanjeeviraja
authors.forename: M
authors.initials: M
authors.lastname: Jayachandran
authors.forename: R
authors.initials: R
authors.lastname: Gopalakrishnan
authors.forename: S N
authors.initials: SN
authors.lastname: Sarangi
authors.forename: D
authors.initials: D
authors.lastname: Paramanik
authors.forename: T
authors.initials: T
authors.lastname: Som