Vol.2 No.1
Year : 2014
Issue : Apr-Jun
Title : Preparation And Characterisation Of Rare Earth Doped Phosphate Glasses
Author Name : Manpreet Kaur, Mehak Mahajan , Mohini Bhatia , Sarabjit Kaur , Lakhwant Singh
Synopsis :
Phosphate glasses with composition 50P O -30CaO-(20-x) Li O-xCeO with x varying from 0-2.0 mol % were prepared 2 5 2 2 using the conventional melt quench technique. The amorphous nature of prepared glasses was confirmed from the XRD(X-Ray Diffraction) spectra. The density and Molar volume of the glasses was found using the Archimedes principle. 3 The value of the density lies in the range of 3.58-3.71 g/cm . The density of the prepared glasses was found to increase with the concentration of CeO . This was explained as the molecular weight of CeO is more as compared to the 2 2 molecular weight of Li O. The Raman spectra was obtained for the prepared glass samples and it was found that no new 2 peaks are formed with the doping of CeO , and only there is a change in the intensity of peaks and the peaks are red 2 shifted. The bandgap energy is found to decrease with CeO doping due to the formation of more NBOs.
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