Abstract
Structure and dielectric constant of silver molybdophosphate mixed network former glasses have been reported in this paper. The Fourier transform infrared (FTIR) spectroscopy has been used to investigate the effect of MoO 3 on the glass network structure. The existence of characteristic absorption bands corresponding to the vibration of P O bond, P–O − mode and P–O–P bond and the presence of MoO 4 2− anions have been ascertained from the FTIR spectra. It is observed that the increase of MoO 3 content in the compositions changes the network structure by creating non-bridging oxygen caused by the breaking of long phosphate chains. It is further observed that the dielectric constant and dielectric strength of these glasses increases with the increase of MoO 3 content, which is attributed to the increase of the polarizability of the glasses due to addition of MoO 3.
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