Abstract
This study examines the impact of Ag2O doping in small quantities on the structural, dielectric, and conductivity features of Na₂O-SiO₂-P₂O₅-Y₂O₃ glass ceramics, aiming to enhance their application potential as solid-state electrolytes. Glass samples containing 0–0.04 mol% Ag₂O were synthesized and subjected to heat treatment to promote crystallization. Structural characteristics using XRD, SEM and spectroscopic techniques confirmed the formation of Na₂AgY(Si₂O₅)₃ crystallites that are entrenched in the remnant amorphous phase. Dielectric and a.c. conductivity measurements were conducted across a wide frequency (4 Hz to 8 MHz) and in the range of temperature (310–633 K). Results indicated that increased Ag₂O content enhances the dielectric constant and conductivity, attributed to polaronic hopping and ionic mobility. The findings highlight the potential of Ag₂O doped Na₂O-SiO₂-P₂O₅-Y₂O₃ glass ceramics in energy storage devices, particularly as solid electrolytes in batteries, due to their improved ionic conductivity and stability.
