doi: 10.7763/IJAPM.2014.V4.271
Thermal and Optical Studies of Rare Earth Doped Tungston–Tellurite Glasses
D. Sushama
1,2
,
- 1 LAMP, Department of Physics, NIT Calicut, Kerala, India
- 2 Department of Physics, M.S.M. College, Kayamkulam, Kerala, India
Abstract
The goal of this work is to prepare and characterize rare earth doped Tungston- Tellurite glasses. Tellurite glasses are well known for their use in optical fibre communication system, device technology etc. These glasses are stable at room temperature, and have good thermal, mechanical and optical properties.Er<span id="cke_bm_90S" style="display: none"> </span><span id="cke_bm_86S" style="display: none"> </span><span id="cke_bm_84S" style="display: none"> </span><sub>2</sub><span id="cke_bm_90E" style="display: none"> </span><span id="cke_bm_86E" style="display: none"> </span><span id="cke_bm_84E" style="display: none"> </span>O<span id="cke_bm_91S" style="display: none"> </span><span id="cke_bm_87S" style="display: none"> </span><sub>3</sub><span id="cke_bm_91E" style="display: none"> </span><span id="cke_bm_87E" style="display: none"> </span> and <span id="cke_bm_88S" style="display: none"> </span>Gd<span id="cke_bm_92S" style="display: none"> </span><sub>2</sub><span id="cke_bm_92E" style="display: none"> </span>O<sub>3</sub><span id="cke_bm_93E" style="display: none"> </span><span id="cke_bm_88E" style="display: none"> </span> doped TeO<sub>2</sub>-<span id="cke_bm_89E" style="display: none"> </span>WO<sub>3</sub>-La<sub>2</sub>O<sub>3</sub> and TeO<sub>2</sub>-WO<sub>3</sub> –PbO glasses are prepared from high purity oxides mixtures, melting in an alumina crucible in air atmosphere. Differential Scanning Calorimetry is used to study the thermal stability of the glass systems and UV/Vis/NIR spectroscopy is used to study the optical propertie<span id="cke_bm_85E" style="display: none"> </span>s of the glasses. The glass transition temperature, Crystallization temperature, melting temperature and the variation in the optical band gap, and refractive index of these samples are calculated with the addition of Er<span id="cke_bm_114S" style="display: none"> </span><span id="cke_bm_110S" style="display: none"> </span><span id="cke_bm_108S" style="display: none"> </span><sub>2</sub><span id="cke_bm_114E" style="display: none"> </span><span id="cke_bm_110E" style="display: none"> </span><span id="cke_bm_108E" style="display: none"> </span>O<span id="cke_bm_115S" style="display: none"> </span><span id="cke_bm_111S" style="display: none"> </span><sub>3</sub><span id="cke_bm_115E" style="display: none"> </span><span id="cke_bm_111E" style="display: none"> </span> and <span id="cke_bm_112S" style="display: none"> </span>Gd<span id="cke_bm_116S" style="display: none"> </span><sub>2</sub><span id="cke_bm_116E" style="display: none"> </span>O<sub>3</sub><span id="cke_bm_117E" style="display: none"> </span><span id="cke_bm_112E" style="display: none"> </span>.<span id="cke_bm_113E" style="display: none"> </span><span id="cke_bm_109E" style="display: none"> </span>
Keywords
- Tellurite glasses
- thermal stability
- optical band gap
- non bridging oxygen
How to Cite
D. Sushama and P. Predeep, "Thermal and Optical Studies of Rare Earth Doped Tungston–Tellurite Glasses," International Journal of Applied Physics and Mathematics, vol. 4, no. 2, pp. 139-143, 2014. https://doi.org/ 10.7763/IJAPM.2014.V4.271
Copyright & License
Copyright © 2014 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).