Abstract
We show the annealing effect on silver and Erbium- doped tellurite glasses in the formation of nanoparticles (NPs) of silver, produced by the reduction of silver (Ag+→Ag0), aiming to an fluorescence enhancement. The absorption spectra show typical Localized Surface Plasmon Resonance (LSPR) band of Ag0 NP in addition to the distinctive absorption peaks of Er3+ ions. Both observations demonstrate that the photoluminescence enhancement is due to the coupling of dipoles formed by NPs with the Er3+ 4I13/2→4I 15/2 transition. This plasmon energy transfer to the Er3+ ions was observed in the fluorescence spectrum with a blue-shift of the peaks.
Original language | English |
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Pages (from-to) | 25321-25328 |
Number of pages | 8 |
Journal | Optics Express |
Volume | 18 |
Issue number | 24 |
DOIs | |
State | Published - 22 Nov 2010 |