Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8041815 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2014 | 8 Pages |
Abstract
Nanoparticles of pure yttrium oxide (Y2O3) have been prepared by sol gel method. The powder X-ray diffraction (PXRD) pattern of as synthesized sample showed the amorphous nature. The as synthesized Y2O3 powders are annealed at 500, 600, 700, 800 and 900 °C for 2 h. Y2O3 powder heat treated for 600 °C showed cubic phase and the crystallite sizes are found to be â¼13 nm. Fourier transformed infrared spectroscopy (FTIR) revealed absorption with peaks at 3434, 1724, 1525, 1400, 847, 562 and 465 cmâ1. Photoluminescence (PL) of 100 MeV Si8+ ion irradiated samples shows emission with peaks at 417, 432, 465 nm. It is found that PL intensity increases with increasing in ion fluence up to â¼3 Ã 1012 ions cmâ2 and then decreases with further increase in ion fluence. A well resolved thermoluminescence (TL) glow with peak at â¼430 K (Tm1) and an unresolved TL glow with peak at â¼538 (Tm2), 584 K (Tm3) are observed in ion irradiated samples.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
B.N. Lakshminarasappa, N.J. Shivaramu, K.R. Nagabhushana, Fouran Singh,