Photo and X-Rays Induced Optical Luminescence of Sm³⁺-Doped Bismuth Borate Glasses

Abstract:

Samarium doped bismuth borate glasses with composition 66.7Bi₂O₃ : (33.3-x)B₂O₃ : x Sm₂O₃ (where x = 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) have been prepared by melt quenching technique. The physical, optical, photoluminescence and X-rays luminescence properties were investigated. The densities and molar volumes were not found the relationship with the increasing samarium concentration. The photoluminescence emission spectra shows broad emission bands due to ⁴G_5/2→⁶H_J (J=5/2, 7/2, 9/2, 11/2) transitions when excited with 473 nm. The decay curves of ⁴G_5/2 level exhibited single exponential behavior for all the concentrations and the measured lifetimes are found to depend strongly on samarium concentrations. The X-rays emission spectra were measured at the X-rays of intensity 100kV and current 1.5mA. The emission peaks observed at 569, 598, 641 and 705 nm. And the intensity of luminescence increase as samarium concentration increase.

• Periodical: Advanced Materials Research (Volume 979)
• Pages: 413-416
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.979.413
• Online since: June 2014
• Authors: Pruittipol Limkitjaroenporn*, Kitipun Boonin, Patarawagee Yasaka, Hong Joo Kim, Jakrapong Kaewkhao
• Keywords: Bismuth Borate Glass, Photoluminescence (PL), Samarium, X-Rays Luminescence

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