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Preparation and Characterization of TeO2 Based Glasses

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Abstract:

Binary and ternary TeO2 based oxy-chloride glass systems have been prepared and characterised by absorption and low-temperature photoluminescence spectroscopy, and by the measurements of dc electrical conductivity. Prepared glasses exhibit transmittance 75-80% in a broad transmission range 0.3 – 6.5µm with modest shift of upper absorption edge to longer wavelength as heavier ions are introduced into the system. Electronic transitions between 4f-4f inner shells of Pr3+ ions embedded into the host glass have been investigated in a wide temperature range as a function of used precursors used for doping. The temperature dependence of dc electrical conductivity exhibits Arrhenius plots with the single activation energy. PACS codes 81.05.Kf, 78.20.Ci, 78.55.Hx

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Periodical:

Materials Science Forum (Volumes 480-481)

Pages:

315-322

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.480-481.315

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Online since:

March 2005

Authors:

J. Pedlíková, J. Zavadil, Olga Prochazková, J. Kaluzny

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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