| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8040067 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2015 | 4 Pages |
Abstract
We report on the room temperature photoluminescence characterization in the visible and near-infrared range of Er-Au co-implanted silica systems as a function of the annealing temperature. Besides the characteristic Er3+ emission at 1540Â nm, the samples exhibit luminescence bands in the wavelength region 600-1400Â nm related to the formation of ultra-small AuN aggregates with a number of atoms N less than 50 atoms. In particular, the correlation between such AuN-related luminescence and the enhancement of the Er3+ emission was investigated and an anti-correlation between the Er3+ luminescence at 1540Â nm and an AuN-related band at 980Â nm was revealed that represents a possible path for the energy-transfer from AuN nanoclusters to Er3+ ions, giving rise to the Er3+ sensitized emission.
Related Topics
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Authors
T. Cesca, B. Kalinic, C. Maurizio, C. Scian, E. Trave, G. Battaglin, P. Mazzoldi, G. Mattei,