Optical properties of borotellurite glasses containing metal oxides

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URI: http://hdl.handle.net/10902/9427
ISSN: 0094-243X
ISSN: 1551-7616
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Author
Kaur, Nirmal; Khanna, Atul; Krishna, P.S.R.; González Martínez, FernandoAutoridad Unican
Date
2015-06
Derechos
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in AIP Conference Proceedings 1665, 070029 (2015) and may be found at http://dx.doi.org/10.1063/1.4917893
Publicado en
AIP Conference Proceedings, 2015, 1665, 070029
59th DAE Solid State Physics Symposium, Tamilnadu, India, 2014
Publisher
American Institute of Physics
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Palabras clave
Borotellurite glasses
XRD
DSC
FTIR
UV-Visible spectroscopy
Abstract:
Glass samples of the system: 5MxOy-20B2O3-75TeO2 : MxOy = WO3, Nb 2O5, PbO, Nd2O3, Y2O3, Eu2O3 were prepared by melt quenching and characterized by X-ray diffraction, density, Differential Scanning Calorimetry, UV-visible and FTIR spectroscopy. XRD patterns confirmed the amorphous structure of all samples. Glass transition temperature was maximum in borotellurite glass containing Y2O3. Refractive index, atomic polarizability and basicity increased in the following order of ions: Y3+ < Eu3+ < Pb2+ < Nd3+ < Nb 3+ < W6+. FTIR studies showed that PbO is outstanding in enhancing the concentration of tetrahedral borons in the borotellurite network.
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