Luminescence and Optical Properties of Li₂O₃:Gd₂O₃:B₂O₃:Sm₂O₃ Glasses System

Abstract:

The samarium-doped lithium-gadolinium borate [60Li₂O:10Gd₂O₃:(30-x) B₂O₃:xSm₂O₃] (LGBO:Sm³⁺) glasses have been melted and quenched in stainless plate under an air atmosphere. Some physical and optical properties within wavelength concerned and photoluminescence of the LGBO:Sm³⁺ glasses were measured and discussed. The density of glasses dropped until 0.10 mol% and tends to increase after that point, while molar volume of the glasses tends to increase with concentration of Sm₂O_3.. In absorption spectra, there are 2 obvious peaks in UV-VIS range and 6 peaks in NIR range indicating the Sm³⁺ in glass matrices. The sharpness of a peak, in the absorption spectra, also increases with concentration of the dopant. The 7 obvious peaks in excitation spectra represent the transitions from the ground state ⁶H_5/2 to various excited states. Furthermore, The emission spectra were observed under 404 nm light from the Xenon compact arc lamps, and showed the concentration quenching effect (CQE) at 1.00 mol% of Sm³⁺. Additional, The lifetimes showed decreasing trend with concentration of Sm₂O_3.. As the result, The LGBO:Sm³⁺ glass doped with 1.00 mol% of Sm³⁺ gives the highest result for luminescence properties.

• Periodical: Advanced Materials Research (Volume 979)
• Pages: 479-482
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.979.479
• Online since: June 2014
• Authors: Warawut Sa-Ardsin, Patarawagee Yasaka, J. Kaewkhao, Kitipun Boonin*
• Keywords: Glass, LGBO, Lithium–Gadolinium, Luminescence Spectra, Samarium

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