Spectroscopic Studies of 50Bi2O3-(50 - x)B2O3-xSm2O3 Glasses System


Sm3+ doped bismuth borate glasses of the composition (50 - x)B2O3:50Bi2O3:xSm2O3 (where x = 0.00, 0.50, 1.00, 1.50, 2.00 and 2.50 mol%) have been synthesized by conventional melt quenching technique. In order to understand the role of Sm2O3 inbismuth borate glasses, the density, the molar volume, the refractive index and the optical absorption were investigated. The results show that density, molar volume and refractive index of glasses increased with increasing Sm2O3 concentration. The increase of molar volume with Sm2O3 concentration is due to increase of non-bridging oxy- gen (NBOs) in the glass matrices. The optical absorption spectra were measured in the wavelength range 300 - 1100 nm and the optical band gaps were determined. It was found that the optical band gap decreased with the increase of Sm2O3 concentration. Moreover, the X-rays luminescence of Sm2O3 glasses samples were measured and shows emission band at 4G5/26H5/2 (569 nm),4G5/26H7/2 (598 nm),4G5/26H9/2 (641 nm) and4G5/26H11/2 (705 nm).

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S. Rakpanich, J. Kaewkhao, K. Boonin, J. Park, H. Kim and P. Limsuwan, "Spectroscopic Studies of 50Bi2O3-(50 - x)B2O3-xSm2O3 Glasses System," New Journal of Glass and Ceramics, Vol. 3 No. 1, 2013, pp. 6-10. doi: 10.4236/njgc.2013.31002.

Conflicts of Interest

The authors declare no conflicts of interest.


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