Synthesis, Structural and Optical Studies of Barium Strontium Titanate Borosilicate Glasses Doped with Ferric Oxide

Abstract

Various barium strontium titanate borosilicate glasses were prepared by a rapid melt-quench technique. Spectroscopic studies have been carried out on investigated glasses for their structural information. Infrared and Raman spectroscopic studies showed that these glasses are formed by glass-forming network of borate and silicate as well as network modifiers in the form of cations of alkaline earth atoms. The borate and silicate networks are modified by barium, strontium, titanium, and iron cations in glass matrix. The network of triborate unit is modified in tetraborate unit by adding ferric oxide in a glassy matrix. The optical studies are performed by ultraviolet-visible spectroscopy and it confirms that the band gap decreases with increase in the concentration of ferric oxide.

Keywords:

• infrared spectroscopy
• Raman spectroscopy
• ultraviolet-visible spectroscopy

Acknowledgment

The authors are thankful to Dr. Prabhakar Singh, Department of Physics, Indian Institute of Technology, BHU, Varanasi, India, for providing the facility of X-ray diffraction.