Title: Effect of confinement on the Eu3+ emission band D-5(0)-> F-7(0) in Eu3+-doped nano-glass-ceramics
Authors: Saurel, D ×
Tikhomirov, Victor
Moshchalkov, Victor
Gorller-Walrand, C
Driesen, K #
Issue Date: Dec-2009
Publisher: Elsevier science bv
Series Title: Journal of luminescence vol:129 issue:12 pages:1575-1577
Abstract: We report a non-linear blue shift of the zero-phonon emission line D-5(0)-> F-7(0) of Eu3+-dopant in Eu3+-doped nano-glass-ceramics in magnetic field up to 50 T. The shift is significantly larger in nano-glass-ceramics compared to its precursor glass, suggesting that the nanoceraming of the precursor glass decreases the effective mass of the f-electrons bands of Eu3+ resulting in their enhanced magnetic confinement. Moreover, the non-linear character of the magnetic field dependence of this blue energy shift denotes a spatial confinement of f-electrons wave-functions of Eu3+ dopants in the PbF2-based nanocrystals of the nano-glass-ceramics where up to 90% of the dopants partition The spatial confinement seems to be due to an admixture to the f-states of Eu3+ of its higher lying states of opposite parity which fall in the quantum well comprising of Eu3+-doped PbF2 crystalline nanoparticles embedded in the surrounding glass network. (c) 2009 Elsevier B.V. All rights reserved.
ISSN: 0022-2313
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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