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

Sebastian Mahlik , Francesc Diaz , Philippe Boutinaud


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 (FMPI / IEP)
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, (A 35 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in Englishdouble tungstates, terbium, high pressure, luminescence quenching
ASJC Classification3104 Condensed Matter Physics; 1303 Biochemistry; 1600 General Chemistry; 3107 Atomic and Molecular Physics, and Optics; 1304 Biophysics
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 24-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.14; WoS Impact Factor: 2017 = 2.732 (2) - 2017=2.577 (5)
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