https://doi.org/10.1140/epjp/s13360-023-04236-2
Regular Article
Improving thermoluminescence properties of Li2B4O7: Cu nanoparticles by co-doping Mn impurities for gamma dosimetry application
1
Physics Department, Persian Gulf University, P. O. Box: 7516913817, Bushehr, Iran
2
Physics Department, University of Kashan, Kashan, Iran
3
Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran
4
Physics Department, Faculty of Science, Arak University, Arak, Iran
5
School of Materials Science and Engineering, Ji Lin Jian Zhu University, 130018, Changchun, China
Received:
14
October
2022
Accepted:
27
June
2023
Published online:
5
July
2023
Doped Lithium tetraborate nano-powders with copper (sample 1) and co-doped with copper–manganese (sample 2) impurities were synthesized via the combustion process and were used to investigate the optical properties. Scanning electron microscopic images plus X-ray diffraction patterns confirm the morphology, size and crystal structure of the produced nanoparticles. Using the Williamson–Hall plot, the average crystallite size was estimated at ~ 51 nm. From the absorption spectrum, the direct optical bandgaps obtained 3.68 eV and 3.72 eV for the samples 1 and 2, respectively. Besides, the thermoluminescence properties of nanoparticles irradiated with different doses of gamma rays were investigated at room temperature. The results show that adding manganese impurities to sample 1 significantly affects its thermoluminescence properties and improves them, so sample 2 is four times more sensitive than sample 1 relative to the gamma ray. The dose–response of sample 2 is linear in a broader range of gamma ray doses than that of sample 1 and its fading in one month is about half of the sample1.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
