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Title: Luminescence of oxyfluoride glasses co-doped with Ag nanoclusters and Yb3+ ions
Authors: Tikhomirov, V. K ×
Vosch, T
Fron, Eduard
Rodriguez, V. D
Velazquez, J. J
Kirilenko, D
Van Tendeloo, G
Hofkens, Johan
Van der Auweraer, Mark
Moshchalkov, V. V #
Issue Date: 2012
Publisher: Royal soc chemistry
Series Title: Rsc advances vol:2 issue:4 pages:1496-1501
Abstract: Bulk oxyfluoride glasses co-doped with Ag nanoclusters and Yb3+ ions have been prepared by a melt quenching technique. When excited in the absorption band of the Ag nanoclusters between 300 to 500 nm, these glasses emit a broad band characteristic of the Ag nanoclusters between 400 to 750 nm as well as an emission band between 900 to 1100 nm, originating from Yb3+ ions. The intensity ratio of the Yb3+/Ag emission bands increases with the Ag doping level at a fixed concentration of Yb3+, indicating the presence of energy transfer mechanism from the Ag nanoclusters to the Yb3+ ions. Comparison of time-resolved decay kinetics of the luminescence in the respectively Ag nanocluster-Yb3+ co-doped and single Ag nanocluster doped glasses, hints towards an energy transfer from the red and infrared emitting Ag nanoclusters to the Yb3+ ions.
ISSN: 2046-2069
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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