Raman, FTIR studies and optical absorption of zinc borate glasses containing WO3

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2020-09, Vol.126 (9), Article 696
• Main Authors: Farouk, M., Samir, A., Ibrahim, A., Farag, M. A., Solieman, A.
• Format: Article
• Language: English
• Subjects: Applied physics; Characterization and Evaluation of Materials; Condensed Matter Physics; Energy gap; Energy value; Glass; Machines; Manufacturing; Materials science; Molar volume; Nanotechnology; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Surfaces and Interfaces; Thin Films; Tungsten oxides; Zinc borate; Zinc oxide
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-020-03890-y

Glasses with composition [ x WO 3 –(25− x )–ZnO–20Na 2 O–55B 2 O 3 where x  = 0, 5, 10, 15 and 20 mol. %] were prepared by melt quenching method. The amorphous state of the current glass samples was checked by X-ray diffraction (XRD). The measured density and calculated molar volume of all prepared samples were found to increase with the replacement of the lighter ZnO by the heavier of WO 3 . The network structure of the present glasses was studied using the infrared (IR) and Raman spectroscopic techniques. IR and Raman results show that the structure of the samples is BO 3 and BO 4 units located in several structural groups with W–O–W units. The decreasing of the band gap energy values by the introducing of WO 3 showed that the creation increases of the number of non-bridging oxygens in the structure of glass. All results showed that the parameters were dependent upon the dopant concentration of WO 3 in the prepared glasses.