Synthesis and Optical Investigations on (Ba,Sr)TiO3 Borosilicate Glasses Doped with La2O3
Open Access
- 1 January 2013
- journal article
- Published by Scientific Research Publishing, Inc. in Optics and Photonics Journal
- Vol. 03 (04), 1-7
- https://doi.org/10.4236/opj.2013.34a001
Abstract
In this research paper we are reporting synthesis, structural and optical investigations of barium strontium titanate borosilicate glasses with addition of La2O3. Glasses were synthesized by conventional rapid melt quench method. Infrared absorption spectra, for various (Ba,Sr)TiO3 borosilicate glass samples having glass system 64[(Ba1-xSrx)TiO3]-35[2SiO2-B2O3]-5[K2O]-1[La2O3] (x = 0.3, 0.5, 0.6, 0.8 and 1.0), were recorded over a continous spectral range from 450 - 4000 cm-1. IR spectra were analyzed to determine and differentiate the various vibrational modes in the structural changes. Raman spectroscopy of all glass samples were also carried out wavenumber range form 200 - 1500 cm-1. These two complementary spectroscopic techniques revealed that the network structure of the studied glasses is mainly based on BO3, pentaborate groups linked to BO4 tetrahedra and units placed in different structural groups, the BO3 units are dominanting. The recorded IR and Raman spectra of different glasses are used to clarify the optical properties of the prepared glass samples correlating with their structure and compositions. UV-Vis spectroscopy was carried out in range of 200 - 800 nm. The optical band gap was found between 2.023 - 3.320 eV. </pKeywords
This publication has 26 references indexed in Scilit:
- Structural Characterization of Borate Glasses Containing Zinc and Manganese OxidesJournal of Modern Physics, 2011
- Optical properties of heavy metal oxide glasses before and after g‐irradiationPhysica Status Solidi (a), 2007
- Optical Band Gap of Barium Titanate Nanoparticles Prepared by RF-plasma Chemical Vapor DepositionJapanese Journal of Applied Physics, 2005
- Raman SpectroscopyAnalytical Chemistry, 1998
- Polyhedral Arrangements in Lanthanum Aluminoborate GlassesJournal of the American Ceramic Society, 1997
- On the Formation of Tetracoordinate Boron in Rubidium Borate GlassesJournal of the American Chemical Society, 1995
- Effect of gamma radiation and thermal treatment on some physical properties of ZnO-PbO-B2O3glassesJournal of Physics D: Applied Physics, 1991
- The infrared transmission spectra of four silicate glasses before and after exposure to waterJournal of Materials Research, 1990
- Normal mode determination in crystalsJournal of Raman Spectroscopy, 1981
- Chemical Vapor Deposition of Silicate Glasses for Use with Silicon DevicesJournal of the Electrochemical Society, 1970