Role of oxygen on the optical properties of borate glass doped with ZnO

Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.08.015· OSTI ID:21580035

Abdel-Baki, Manal ^[1]; El-Diasty, Fouad ^[2]

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1. Glass Research Department, National Research Center, Dokki, 12311 Giza (Egypt)
2. Physics Department, Faculty of Science, Ain Shams University, Abbasia Cairo 11566 (Egypt)

Lithium tungsten borate glass (0.56-x)B{sub 2}O{sub 3}-0.4Li{sub 2}O-xZnO-0.04WO{sub 3} (0{<=}x{<=}0.1 mol%) is prepared by the melt quenching technique for photonic applications. Small relative values of ZnO are used to improve the glass optical dispersion and to probe as well the role of oxygen electronic polarizability on its optical characteristics. The spectroscopic properties of the glass are determined in a wide spectrum range (200-2500 nm) using a Fresnel-based spectrophotometric technique. Based on the Lorentz-Lorenz theory, as ZnO content increases on the expense of B{sub 2}O{sub 3} the glass molar polarizability increased due to an enhanced unshared oxide ion 2p electron density, which increases ionicity of the chemical bonds of glass. The role of oxide ion polarizability is explained in accordance with advanced measures and theories such as optical basicity, O 1s binding energy, the outer most cation binding energy in Yamashita-Kurosawa's interionic interaction parameter and Sun's average single bond strength. FT-IR measurements confirm an increase in bridging oxygen bonds, as a result of replacement of ZnO by B{sub 2}O{sub 3}, which increase the UV glass transmission window and transmittance. - Graphical abstract: O1s, Yamashita-Kurosawa's parameter and average single bond strength of charge overlapping between electronic shells are used to explain enhanced oxide ion 2p electron density, which increases refractive index of glasses. Highlights: > New borate glass for photonic application is prepared. > The dispersion property of the glass is effectively controlled using small amounts of ZnO. > ZnO is used to probe the glass structure and investigate the role of oxygen on the obtained optical properties of the glasses. > Modern theories are used to explain enhanced unshared oxide ion 2p electron density, which increases ionicity of chemical bonds of the glass.

• OSTI ID: 21580035
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 10; Other Information: DOI: 10.1016/j.jssc.2011.08.015; PII: S0022-4596(11)00455-5; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BINDING ENERGY
BORATES
BORON OXIDES
CATIONS
CHEMICAL BONDS
DOPED MATERIALS
ELECTRON DENSITY
FOURIER TRANSFORMATION
GLASS
INFRARED SPECTRA
LITHIUM
OPTICAL DISPERSION
OXYGEN
POLARIZABILITY
PROBES
REFRACTIVE INDEX
TUNGSTEN
ZINC OXIDES
ALKALI METALS
BORON COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY
INTEGRAL TRANSFORMATIONS
IONS
MATERIALS
METALS
NONMETALS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRACTORY METALS
SPECTRA
TRANSFORMATIONS
TRANSITION ELEMENTS
ZINC COMPOUNDS