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Title: Effect of heat-treatment on luminescence and structure of Ag nanoclusters doped oxyfluoride glasses and implication for fiber drawing
Authors: Kuznetsov, Aleksandr ×
Ngo, Toan Cuong
Tikhomirov, Victor
Jivanescu, Mihaela
Stesmans, Andre
Chibotaru, Liviu
Velazkuez, J. J.
Rodriguez, V. D.
Kirilenko, D.
Van Tendeloo, G.
Moshchalkov, Victor #
Issue Date: Feb-2012
Publisher: Elsevier BV
Series Title: Optical Materials vol:34 issue:4 pages:616-621
Abstract: The effect of heat treatment on the structure and luminescence of Ag nanoclusters doped oxyfluoride glasses was studied and the implication for drawing the corresponding fibers doped with luminescent Ag nanoclusters has been proposed. The heat treatment results, first, in condensation of the Ag nanoclusters into larger Ag nanoparticles and loss of Ag luminescence, and further heat treatment results in precipitation of a luminescent-loss nano- and microcrystalline Ag phases onto the surface of the glass. Thus, the oxyfluoride fiber doped with luminescent Ag nanoclusters was pulled from the viscous glass melt and its attenuation loss was 0.19 dB/cm in the red part of the spectrum; i.e. near to the maximum of Ag nanoclusters luminescence band. The nucleation centers for the Ag nanoclusters in oxyfluoride glasses have been suggested to be the fluorine vacancies and their nanoclusters.
URI: 
ISSN: 0925-3467
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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