Impurity-trapped excitons and electron traps in CaF2:Yb2+ and SrF2:Yb2+ probed by transient photoluminescence enhancement

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Impurity-trapped excitons and electron traps in CaF2:Yb2+ and SrF2:Yb2+ probed by transient photoluminescence enhancement
 
Senanayake, P.S.; Wells, J.P.R.; Reid, M.F.; Berden, G.; Meijerink, A.; Reeves, R.J.
(2013) Journal of Luminescence, volume 133, pp. 81 - 85
(Article)
Abstract
CaF2:Yb2+ and SrF2:Yb2+ crystals have been investigated by a two-color UV + IR transient photoluminescence enhancement technique. The enhancement gives information about both changes in internal energy levels of the excitons and liberation of electrons from traps in the crystals. --------------------------------------------------------------------------------
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DOI: https://doi.org/10.1016/j.jlumin.2011.09.043
ISSN: 0022-2313
Publisher: Elsevier
(Peer reviewed)
 
 
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