Spectral and Luminescence Properties of Manganese Doped Sodium Lead Alumino Borosilicate Glass System
- 1 Bapatla College of Arts and Sciences, India
- 2 SS & N College, India
- 3 VRS & YRN College, India
Na2O-PbO-Al2O3-B2O3-SiO2 glasses mixed with different concentrations of MnO (ranging from 0.3 to 0.9 mol %) was prepared by melt quenching technique. The samples were characterized by X-ray diffraction technique, Optical absorption and Photo luminescence technique. A prepared glass sample is confirmed by X-ray diffraction spectra. The optical absorption spectra of these glasses exhibited a predominant broad band peak at 21,052 cm-1 (475 nm) is identified due to 6A1g (S) → 4T1g (G) octahedral transition of Mn2+ ion. From the spectral analysis the optical band gap (Eopt) and Urbach energy (ΔE) are evaluated. The emission spectra of Mn2+ doped titled glasses have shown single and broad emission band at about 600 nm assigned to electronic transition 4T1g (G) → 6A1g (S) displaying red emission upon excitation at 413 nm. Various principle physical properties were also evaluated.
Copyright: © 2019 K. Vijaya Babu, A. Subba Rao, K. Naresh Kumar and M. Venugopala Rao. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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- Borosilicate Glass
- Melt Quenching Method
- Optical and Luminescence Studies