You are in:Home/Publications/Optical and physical studies of Bi doped borate glassy system

Dr. Hytham Ahmed Abd El-Ghany Mohammed :: Publications:

Optical and physical studies of Bi doped borate glassy system
Authors: M. El- Sherbiny ; A. Samir ; H. A. Abd El-Ghany ; F. Metawe ; M.M. El-Okr
Year: 2013
Keywords: Borate glass - melt quenching technique - Bi2O3
Journal: Egyptian Journal of Solids
Volume: 36
Issue: Not Available
Pages: 51-62
Publisher: The Egyptian Materials research society
Local/International: International
Paper Link: Not Available
Full paper Hytham Ahmed Abd El-Ghany Mohammed_full.pdf
Supplementary materials Not Available

Glasses of composition xBi2O3-(83-x) B2O3-15Na2O-2MnO2 with (x =0, 5, 10, 20 and 25 mol %) have been prepared by conventional melt quench technique. Characterization of the prepared samples has been achieved by X-ray diffraction (XRD), density and optical measurements. The XRD patterns of all the samples showed broad humps typical for amorphous systems. Density and molar volume have been determined and it is found that both are increased with increasing of Bi2O3 content. The effect of Bi2O3 content on the optical absorption spectra was investigated in the wavelength range190-1100nm.The fundamental absorption edge has been identified where it exhibits red shift by increasing Bi2O3 content and band tail width follow opposite trend. The optical band gap (Eg) values of the investigated glasses are found to lie in the range 2.40 – 1.90 eV whereas the values of (ΔEe) lie in the range 0.66 – 1.436 eV. Some other physical properties also reported.

Google ScholarAcdemia.eduResearch GateLinkedinFacebookTwitterGoogle PlusYoutubeWordpressInstagramMendeleyZoteroEvernoteORCIDScopus