Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 20 | Page No.: 3051-3056
DOI: 10.3923/jas.2007.3051.3056
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

IR and UV Spectral Studies of Zinc Tellurite Glasses

S. Rosmawati, H.A.A. Sidek, A.T. Zainal and H. Mohd Zobir

Abstract:
A glass system based on TeO2-ZnO was successfully prepared. The optical properties were investigated using the technique of UV-FTIR spectra. The optical absorption was recorded at room temperature in the wavelength range of 200 to 800 nm while the FTIR spectra were recorded at room temperature in the wave number range 400 to 4000 cm. FTIR analyses reveal that the absorption band, associated with the Te-O-Te vibration mode has been observed near 669 cm-1. From the absorption edge studies, the value of the optical band gap Eopt and Urbach tail have been evaluated. The value of Eopt lies between 1.88 and 2.62 eV for the indirect transition and for direct transition the values vary from 2.46 to 3.01 eV whereas the Urbach energy values lies between 0.600 to 1.915 eV. The results indicated that the optical properties were observed to be dependent on the ZnO content.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

S. Rosmawati, H.A.A. Sidek, A.T. Zainal and H. Mohd Zobir, 2007. IR and UV Spectral Studies of Zinc Tellurite Glasses. Journal of Applied Sciences, 7: 3051-3056.

DOI: 10.3923/jas.2007.3051.3056

URL: https://scialert.net/abstract/?doi=jas.2007.3051.3056

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom