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Spectroscopic and TL properties of Sm2O3 doped lead silicate glasses containing alumina and antimony oxides

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Abstract

The present investigation, aimed to prepare lead silicate glasses doped with samarium ions and to study it’s structure, elastic, spectroscopic and thermoluminiscence properties with Al(10−x)Sbx composite influence. The objective of the investigation is to develop TL sustained good laser active resource by means of studying photo and thermoluminiscence properties. In this direction, we have prepared the glass series of Al(10−x)SbxSm0.1Pb30Si59.9 materials (where, 0 ≤ x ≤ 10, with steps of 0, 2, 4, 6, 8 and 10 mol%) after that planned for structural (XRD, FT-IR, DTA, EDS & SEM), Optical (UV & PL) and thermoluminescence characterization. The XRD and SEM studies reveal the glassy behavior of test samples. The EDX analysis signifies the chemical constitutes with atomic weight %. The physical properties such as density and molar volume of glasses were evaluated. The DTA studies of glasses reveal the glass transition and crystallization temperature points. The values of thermal stabilities of glasses found to be purely function of Sb3+ ions. Various structural vibrations of test glass conformed using FT-IR studies. Using ultrasonic velocities of the test glasses, the glasses' micro-hardness was evaluated. From the absorption spectra, the Judd–Ofelt intensity parameters (Ω2, Ω4, Ω6) have been calculated. The PL spectra under stimulation at 402 nm show a prominent reddish–orange emission at 602 nm. The experimental lifetimes (τr) of the 4G5/2 → 6H7/2 (602 nm) luminescence transition were measured using the decay spectral profiles of this transition. The evaluated emission cross-sections (σse), branching ratios (βr), and quantum efficiency (η) allow us to speculate that the lead silicate glasses doped with Sm3+ ions are ideally suitable as potential gain mediums for visible reddish orange lasers pumped directly by readily available 405 nm laser diodes. Quantum efficiencies of the produced glasses are obtained using a decay curve analysis. The emission spectra used to establish the developed glasses' reddish orange emission are used to compute the CIE chromaticity coordinates. It is evident from the stated fluorescent properties that the developed glasses are suited for reddish–orange laser applications, particularly in opto-electronic devices. From all of the values obtained, it can be observed that SAS6 glass code is ideally suited for reddish–orange laser applications. The TL properties are studied at 30 kGy gamma irradiation dose range. The frequency factor and A.E. of glasses were evaluated. This reveals that the TL behavior of glasses is a purely function of Sb3+ ions. Overall, the Al(10−x)SbxSm0.1Pb30Si59.9 glasses prepared are mechanical hard, TL effective, and optically useful resources.

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Acknowledgements

Authors thank to the Dr. K. T. Mahee (Chairman), Mr. K. Abijith Rao (C.E.O), and Prof. C.V.Tomy (Director) of Sreenidhi Institute of Science and Technology for needful help and moral support during overall completion of the investigation.

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Dr. P.A.: synthesis, characterization and results analysis; Dr. R.K.G.: conceptualization, methodology, results analysis and report drafting; Dr. S.S.D.: helped during optical characterization; Dr. Ch.R.: helped during TL characterization; Dr. K.R.K.C.: helped during FT-IR deconvolution Analysis.

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Correspondence to Ravi Kumar Guntu.

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Ashok, P., Guntu, R.K., Devi, S.S. et al. Spectroscopic and TL properties of Sm2O3 doped lead silicate glasses containing alumina and antimony oxides. Opt Quant Electron 56, 446 (2024). https://doi.org/10.1007/s11082-023-06093-w

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  • DOI: https://doi.org/10.1007/s11082-023-06093-w

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