Spectroscopic Studies of 50Bi2O3-(50 - x)B2O3-xSm2O3 Glasses System - New Journal of Glass and Ceramics

NJGC > Vol.3 No.1, January 2013

New Journal of Glass and Ceramics

Volume 3, Issue 1 (January 2013)

ISSN Print: 2161-7554 ISSN Online: 2161-7562

Google-based Impact Factor: 1.75 Citations

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

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DOI: 10.4236/njgc.2013.31002 3,653 Downloads 6,673 Views Citations

Author(s)

Suwat Rakpanich, Jakrapong Kaewkhao, Kittipun Boonin, Jeongmin Park, Hong Joo Kim, Pichet Limsuwan

Affiliation(s)

Center of Excellence in Glass Technology and Materials Science, Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand.
Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand.
Department of Physics, Kyungpook National University, Daegu, South Korea.

ABSTRACT

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 ⁴G_5/2→⁶H_5/2 (569 nm),⁴G_5/2→⁶H_7/2(598 nm),⁴G_5/2→⁶H_9/2 (641 nm) and⁴G_5/2→⁶H_11/2 (705 nm).

KEYWORDS

Samarium; Luminescence; Optical Properties; Density

Share and Cite:

Rakpanich, S. , Kaewkhao, J. , Boonin, K. , Park, J. , Kim, H. and Limsuwan, P. (2013) Spectroscopic Studies of 50Bi₂O₃-(50 - x)B₂O₃-xSm₂O₃ Glasses System. New Journal of Glass and Ceramics, 3, 6-10. doi: 10.4236/njgc.2013.31002.

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