Co nanoparticle effects on the thermoluminescent signal induced by UV and gamma radiation in ZrO2 powders

•Co nanoparticles have a strong influence on the morphology of synthetized ZrO2.•Tetragonal and monoclinic zirconia were observed on pure and Co-doped ZrO2.•The incorporation of Co nanoparticles in ZrO2 has effects on the TL intensity.•Co nanoparticles in ZrO2 induce two new TL signals at higher tem...

Full description

Saved in:
Bibliographic Details
Published in:Optical materials 2014-05, Vol.36 (7), p.1219-1226
Main Authors: Villa-Sánchez, G., Mendoza-Anaya, D., Eufemia Fernández-García, M., Escobar-Alarcón, L., Olea-Mejía, O., González-Martínez, P.R.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron microscopy
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Ionizing radiation
Optical materials
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optics
Other luminescence and radiative recombination
Physics
Rietveld refinement
Thermoluminescence
X-ray diffraction
ZrO2 powders
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Co nanoparticles have a strong influence on the morphology of synthetized ZrO2.•Tetragonal and monoclinic zirconia were observed on pure and Co-doped ZrO2.•The incorporation of Co nanoparticles in ZrO2 has effects on the TL intensity.•Co nanoparticles in ZrO2 induce two new TL signals at higher temperatures.•We showed that ZrO2 could be an appropriate dosimetric material for γ-radiation. Zirconia powders, both pure and doped with Co nanoparticles were prepared by the sol–gel method followed by thermal treatment at 1000°C. The morphological and crystallographic characteristics were studied by scanning and transmission electron microscopy, X-ray diffraction and the Rietveld refinements method. Analysis of the thermoluminescent (TL) signal induced by UV and gamma radiation was also conducted. According to the results, Co nanoparticles have a strong influence on the growth of ZrO2 particles and favor the formation of monoclinic zirconia. Moreover, an important influence of the added Co nanoparticles was observed on the position of the TL peaks of ZrO2, inducing a shift in the luminescence towards higher temperatures as well as the presence of more TL peaks at higher temperatures.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2014.03.002