Comparative spectroscopic studies on luminescence performance of er3+ doped tellurite glass embedded with different nanoparticles (Ag co and fe) at 0.55 μm emission

Abstract

The spectroscopic performance of Er doped glass at 0.55 μm emission contain different nanoparticles NPs have been comparatively evaluated. Glass containing 1.0 mol % of Er doped with different NPs (Ag, Co and Fe ) have been prepared using melt quenching technique. X-ray diffraction analysis reveals the all the prepared samples are amorphous. The UV-Vis absorption spectra of all glasses show several prominent peaks at 525 nm, 660 nm, 801nm, 982 nm and 959 nm due to transition from ground state I15/2 to different excited of H11/2, F9/2, I9/2, I11/2, and I13/2. The emission of Er at 0.55 μm for glass contain Ag NP shows significant enhancement about 3 folds up to 0.6 mol%. On the other hand, the emission of Er at 0.55 μm for glass containing Fe NPs and Co NPs intensely quench probably due to the energy-transfer from Er ion to NPs and magnetic contributions