Luminescence quenching in KYb(WO4)2-Tb3+: an example of temperature-pressure equivalence
Sebastian Mahlik , Francesc Diaz , Philippe Boutinaud
AbstractThe 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.
|Other language title versions|
|Journal series||Journal of Luminescence, ISSN 0022-2313, (A 35 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||double tungstates, terbium, high pressure, luminescence quenching|
|Score|| = 35.0, ArticleFromJournal|
= 35.0, ArticleFromJournal
|Publication indicators||: 2017 = 2.732 (2) - 2017=2.577 (5)|
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