Experimental and theoretical models of elastic properties of erbium-doped zinc tellurite glass system for potential fiber optic application

A glass series of zinc tellurite was doped with erbium oxide and was successfully synthesized by employing a melt-quenching method. The glasses were prepared based on the chemical composition, [(TeO2)(0.7)(ZnO)(0.3)](1-x)(Er2O3)(1-x) provided with different concentration of dopants, 0.01-0.05 M fraction. The structural and elastic properties of the samples were elucidated using equipment such as Fourier transform infrared (FTIR) and Ultrasonic equipment. By studying FTIR spectra, the presence of TeO4 at 601-623 cm(-1) and non-existence of TeO3, ZnO and Er2O3 implies that these bonds have been altered. However, by implementing the deconvolution technique using Origin 6.0 software, the remaining functional groups have been found. Besides that, the elastic moduli and other elastic parameters of the glasses are generally found to vary with the increase of erbium oxide while the Poisson's ratio lies in the expected range of 0.2-0.3. A comparison is made between the respective elastic experimental and theoretical from 20.0 to 70.0 GPa which includes Makishima and Mackenzie, rocherulle, ring deformation and bond compression models. The outcome highlights that rocherulle model match well with the experimental elastic results using coefficient of determination, R-2.