Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 178, Issue 3, Pages 831-846Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2004.12.013
Keywords
oxide glasses; refractive index; electronic polarizability; optical basicity; metallization; chemical bonding; XPS spectra; nonlinear optical materials
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A classification of binary oxide glasses has been proposed taking into account the values obtained on their refractive index-based oxide ion polarizability alpha O-2-(n(0)). optical basicity Lambda(n(0)), metallization criterion M(n(0)), interaction parameter A(n(0)), and ion's effective charges as well as Ols and metal binding energies determined by XPS. Four groups of oxide glasses have been established: glasses formed by two glass-forming acidic oxides; glasses formed by glass-forming acidic oxide and modifier's basic oxide; glasses formed by glass-forming acidic and conditional glass-forming basic oxide; glasses formed by two basic oxides. The role of electronic ion polarizability in chemical bonding of oxide glasses has been also estimated. Good agreement has been found with the previous results concerning classification of simple oxides. The results obtained probably provide good basis for prediction of type of bonding in oxide glasses on the basis of refractive index as well as for prediction of new nonlinear optical materials. (c) 2005 Elsevier Inc. All rights reserved.
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