Luminescence quenching in KYb(WO4)2-Tb3+: an example of temperature-pressure equivalence

Sebastian Mahlik , Francesc Diaz , Philippe Boutinaud

Abstract

The luminescence properties of a single crystal of KYb(WO4)2 doped with Tb3+ are investigated as a function of temperature at ambient pressure and at room temperature under high hydrostatic pressure. The observed quenching of the green Tb3+ (5D4→7F5) luminescence is ascribed to a pressure-induced downshift of the Tb3+→W6+ metal to metal charge transfer (impurity trapped exciton) state. A model is introduced to account for the pressure-induced quenching of the Tb3+ luminescence at room temperature in this double tungstate crystal.
Author Sebastian Mahlik IFD
Sebastian Mahlik,,
- Institute of Experimental Physics
, Francesc Diaz
Francesc Diaz,,
-
, Philippe Boutinaud
Philippe Boutinaud,,
-
Other language title versions
Journal seriesJournal of Luminescence, ISSN 0022-2313
Issue year2017
Vol191
NoA
Pages18-21
Publication size in sheets0.5
Keywords in Englishdouble tungstates, terbium, high pressure, luminescence quenching
DOIDOI:10.1016/j.jlumin.2017.02.007
URL https://doi.org/10.1016/j.jlumin.2017.02.007
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.686 (2) - 2016=2.558 (5)
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