Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1608273 | Journal of Alloys and Compounds | 2015 | 5 Pages |
Abstract
We fabricated Ti oxide nanoparticles by laser ablation of a Ti target in doubly deionized water with ps or ns pulses at a laser wavelength of 1064Â nm. Electron microscopy, Raman, X-ray diffraction and X-ray photoelectron spectroscopy showed that, while with ns pulses the dominant oxide phase is rutile, with ps pulses anatase is the most abundant form in an intermediate energy window centered around 25Â mJ per pulse. This experimental behavior can be described by a theoretical model which calculates the pressure and temperature evolution of the ablated material and, from this, the rutile and anatase yield.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
E. Giorgetti, M. Muniz Miranda, S. Caporali, P. Canton, P. Marsili, C. Vergari, F. Giammanco,