Preparation of new thermoluminescent material (100↿em>x)B2O3᾿em>xLi2O: Cu2+
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- 作者：ZEID A ALOTHMAN ; TANSIR AHAMAD ; MU NAUSHAD…
- 关键词：Inorganic compounds ; glasses ; nanostructures ; transmission electron microscopy ; luminescence
- 刊名：Bulletin of Materials Science
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：39
- 期：1
- 页码：331-336
- 全文大小：1,888 KB
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TANSIR AHAMAD (1)
MU NAUSHAD (1)
SAAD M ALSHEHRI (1)
1. Department of Chemistry, College of Science, Bld #5, King Saud University, Riyadh, 11451, Saudi Arabia - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Engineering, general - 出版者：Springer India
- ISSN：0973-7669
文摘
The copper-doped lithium borate glass as a thermoluminescent (TL) material (100−x) B2O3–xLi2O : Cu2+ (x= 20, 50 and 80 mol%) was prepared by the combustion method. The formation of (100 −x)B2O3–xLi2O : Cu2+ after doping 2, 3 and 5 ppm Cu2+, was characterized by Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. The TL characteristics of the synthesized material were studied at different parameters. The synthesized glass 50B2O3–50i2O : Cu2+ with 3 ppm of doped Cu2+, exhibited the superior TL properties than other glasses prepared in the current study. The spin-Hamiltonian parameters were assessed using the electron spin resonance spectra of 50B2O3–50Li2O : Cu2+ doped with 3 ppm Cu2+. The spin-Hamiltonian parameter values in the case of Cu2+ revealed that the ground state of Cu2+ was dx 2–y 2 orbital (\(^{\mathbf {2}}\text {B}_{\mathbf {1g}}\)) and the site symmetry around Cu2+ ion was distorted octahedral. TL glow curves were recorded with different heating rates (1, 2, 5, 10, 15, and 20∘C s−1) at the fixed dose 10 × 103 Gy. The results revealed that the glow peak position shifted to higher temperature with heating rate and the heating rate of 10∘C s−1 showed the superior TL response with highest glow peak which is very good for dosimetry purposes.