Samarium Concentration and Optical Correlation of Tellurite Glass

Abstract:

Modifying the structural and optical properties of inorganic glasses via controlled doping of various rare earth ions by inhibiting the quenching effect is a challenging task. We report the influence of samarium (Sm³⁺) ions concentration on enhanced optical properties of tellurite glass. A series of glasses with composition (0.80-x)TeO₂ + 0.10Li₂O + 0.10 Na₂O + xSm₂O_3, where 0.0<x <0.03 mol% are prepared using melt quenching method and optical characterizations are performed. The XRD spectra confirm the amorphous nature of the glass. The Urbach energy decreases and the optical gap for both direcet and indirect transitions increases with the increse of samerium contents. The UV-Vis spectra comprised of eight absorption bands and PL spectra reveal four prominet peaks corresponding to various transitions from the ground state to the excited states of Sm³⁺ ion. The optical response shows significant enhancement with increasing concentration of samerium ions. Our detail experimental analyses may be useful for the development of tellurite glass based photonic devices. Keywords: Tellurite Glass, Sm³⁺ ions, Urbach Energy, Direct and Indirect Transition.

• Periodical: Advanced Materials Research (Volume 1107)
• Pages: 443-448
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1107.443
• Online since: June 2015
• Authors: Sib Krishna Ghoshal*, Azmirawahida Zainuddin, Ramli Arifin, M.R. Sahar, Md Supar Rohani, Khaidzir Hamzah
• Keywords: Direct Transitions, Indirect Transition, Sm³⁺ Ions, Tellurite Glass, Urbach Energy

References

[1] J.S. Wang, E.M. Vogel, E. Snitzer, Enhancement in pump inversion efficiency at 980 nm in Er3+, Er3+/Eu3+ and Er3+/Ce3+ doped tellurite glass fibers, Opt. Mater. 3, 187 (1994) 5050-5054.

DOI: 10.1364/oaa.2005.me7

[2] T. Kosuge, Y. Benino, V. Dimitrov, R. Sato, T. Komatsu, Thermal stability and heat capacity changes at the glass transition in K2O–WO3–TeO2 glasses, J. NonCryst. Solids, 242 (1998) 154- 164.

DOI: 10.1016/s0022-3093(98)00800-x

[3] N.A. Zarifah, M.K. Hashim, M. Azmi, W.M. Daud, Magnetic Behaviour of (Fe2O3)X (TeO2)1-X Glass System Due to Iron Oxide, Chalcogenide Lett. 9 (2010) 565-571.

[4] O. Ravi, C.M. Reddy, L. Manoj, B.D. P Raju, Structural and optical studies of Sm3+ ions doped niobium borotellurite glasses, Journal of Molecular Structure 1029 (2012) 53-59.

DOI: 10.1016/j.molstruc.2012.06.059

[5] G K M Thutupalli, S G Tomlin, The optical properties of amorphous and crystalline silicon,  J. Phys. C: Solid State Phys. 10 (1977) 467-477.

DOI: 10.1088/0022-3719/10/3/017

[6] A. Awang, S.K. Ghoshal, M.R. Sahar, R. Arifin, F. Nawaz, Non-spherical gold nanoparticles mediated surface plasmon resonance in Er3+ doped zinc-sodium tellurite glasses: Role of heat treatment, Journal of Luminescence 149 (2014) 138-143.

DOI: 10.1016/j.jlumin.2014.01.027

[7] B. Eraiah, Optical properties of samarium doped zinc–tellurite glasses, Bull. Mater Science 29 (2006) 375-378.

DOI: 10.1007/bf02704138