Silver Plasmon Enhanced Luminescence of Sm 3+ Ions in a Boro‐Tellurite Glass Ceramic
Kevin Bennett, Rupesh A. Talewar, B. Rami ReddyABSTRACT
A series of samarium (Sm 3+ ) doped sodium yttrium boro‐tellurite (NaYTeBO) glass‐ceramics embedded with silver (Ag) metallic nanoparticles (NPs) have been successfully prepared by the melt‐quenching technique. X‐ray diffraction (XRD) technique, absorption, luminescence, and fluorescence decay measurements were used to analyze the structural and optical characteristics of the prepared glass ceramics. UV‐Vis‐NIR absorption spectra reveal the surface plasmon resonance (SPR) peak at 415 nm. The effect of Ag NPs on the luminescence enhancement of Sm 3+ doped glass samples was examined. Furthermore, Judd–Ofelt (J‐O) intensity parameters and radiative probabilities were calculated for Sm 3+ doped and Sm 3+ ,Ag co‐doped NaYTeBO glass ceramics. The enhancement of the photoluminescence emission intensity for the 4 G 5/2 → 6 H J where (J = 5/2, 7/2, 9/2, 11/2, and 13/2) transitions was largely credited to the plasmonic effect induced by the Ag NPs. This study provides valuable insights into the interaction between Ag NPs and Sm 3+ ions.