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The Effect of Cobalt Ions on Boron Glass: A Review
Y.H. Elbashar, Diaa. Rayan, Shimaa.G. ElGabaly, A.A. Mohamed

In this review we will show the borate glass has a good glass former, and finds many applications. B2O3 glass is formed from BO3 triangles that composed of three-membered (boroxol) rings. Addition of some oxides to the glasses led to a lot of new applications and improve the glass optical, electrical and physical properties. The modifier oxide changes a part of the BO3 triangles to BO4 tetrahedral thus cracking bridging oxygen bonds to create non-bridging oxygen (NBOs). The influence of Zinc oxide doped borate matrix had dual role in it that acted as former or modifier glass had been illustrated by different tools of characterization. When it acted as a network modifier, it converted the bridging oxygen to a non-bridging one in glass specimens. While when it acted as a glass former, it entered the network with ZnO4 structural units.

Keywords: UV-VIS spectroscopic analysis, Borate glass, Cobalt oxide (Co3O4), bandpass filter, band deconvolution, DFT and B3LYP/6-311G (d,p) level