  Neodymium doped Na2O-ZnO-TeO2 (NZT) glasses were prepared by the conventional
melt quenching technique. DTA and TG were used to confirmation of glass
preparation through the glass transition temperature at 447{\deg}C for the
glass system. The analysis of FTIR spectra and X-ray diffraction described the
nature of the samples were ionic and amorphous respectively. The optical
bandgap energy was estimated using absorption spectra and found to be decreased
from 2.63eV to 1.32 eV due to the increase of doping concentration. The
intensity of the emission spectra was enhanced for the higher concentration of
Nd3+ ions. The dielectric constant of the glass samples was found to be
constant for the large range of frequency (3 kHz to 1 MHz). The variation of
conductivity with the temperature of the samples had shown the Arrhenius
mechanism of conduction.

Materials Science