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Thermoluminescence characteristics of copper activated calcium borate nanocrystals (CaB4O7:Cu)


Haghiri, Maryam Erfani and Saion, Elias and Soltani, Nayereh and Wan Abdullah, Wan Saffiey and Navasery, Manizheh and Hashim, Mansor (2013) Thermoluminescence characteristics of copper activated calcium borate nanocrystals (CaB4O7:Cu). Journal of Luminescence, 141. pp. 177-183. ISSN 0022-2313; ESSN: 1872-7883


The copper activated calcium tetraborate (CaB4O7:Cu) nanophosphor was synthesized by a combination of facile co-precipitation and thermal treatment methods for the first time. Thermoluminescence and dosimetric characteristics of the gamma irradiated CaB4O7:Cu nanophosphor was reported. The glow curves shows two well resolved TL peaks centered at about 120 °C and 260 °C. The copper concentration was varied from 1 to 3 mol% and it was found that the nanocrystalline CaB4O7:Cu with a dopant concentration of 2 mol% has the highest sensitivity among the other dopant concentrations. The results demonstrated that copper can enhance TL efficiency to 2.26 times more than that of un-doped nanocrystalline samples. Moreover, the dose response of the dosimetric peak at 260 °C follows a good linearity up to 3 kGy whereas the linearity of lower temperature peak at 120 °C extended up to 30 Gy. The linearity characteristic of the present nanophosphor suggests it as a candidate towards dosimetric applications.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.jlumin.2013.03.039
Publisher: Elsevier
Keywords: Copper; Calcium tetraborate; Nanophosphor; Thermoluminescence; Co-precipitation; Radiation dose
Depositing User: Umikalthom Abdullah
Date Deposited: 14 Nov 2014 04:39
Last Modified: 11 Sep 2015 03:42
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jlumin.2013.03.039
URI: http://psasir.upm.edu.my/id/eprint/30408
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