Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1809546 | Physica B: Condensed Matter | 2014 | 4 Pages |
Abstract
Single phase TiO2 nanostructures are fabricated by oxygen ion implantation (60Â keV) at fluence ranging from 1Ã1016 ions/cm2 to 1Ã1017 ions/cm2 in titanium thin films deposited on fused silica substrate and subsequent thermal annealing in argon atmosphere. GAXRD and Raman spectroscopy study reveals formation of single rutile phases of TiO2. Particle size is found to vary from 29Â nm to 35Â nm, establishing nanostructure formation. Nanostructure formation is also confirmed by the quantum confinement effect manifested by the blueshift of the UV-vis absorption spectra. Photoluminescence spectra show peaks corresponding to TiO2 rutile phase and reveal the presence of oxygen defects due to implantation. The controlled synthesis of single phase nanostructure is attributed to ion induced defects and post-implantation annealing. It is observed that the size of the nanostructures formed is strongly dependent on the ion fluence.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Deepti A. Rukade, L.C. Tribedi, Varsha Bhattacharyya,