Journal
PHYSICA B-CONDENSED MATTER
Volume 407, Issue 21, Pages 4168-4172Publisher
ELSEVIER
DOI: 10.1016/j.physb.2012.06.043
Keywords
Optical properties; Bismuth glasses; Borate glasses
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xCeO(2)-30Bi(2)O(3)-(70-x) B2O3 glasses are synthesized by using the melt quench technique. A number of studies such as XRD, density, molar volume, optical band gap, refractive index and FTIR spectroscopy are employed to characterize the glasses. The band gap decreases from 2.15 to 1.61 eV, refractive index increases from 2.67 to 2.93 and density increases from 4.151 to 4.633 g/cm(3). The decrease in band gap with CeO2 doping approaches the semiconductor behavior. FTIR spectroscopy reveals that incorporation of CeO2 into glass network helps to convert the structural units of [BO3] into [BO4] and results in Bi-O bond vibration of [BiO6]. (c) 2012 Elsevier B. V. All rights reserved.
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