Structural effects and 5d→4f emission transition shifts induced by Yco-doping in Pr-doped K3Lu.sub.1-x./sub.Y.sub.x./sub.(PO.sub.4./sub.).sub.2./sub.

0482771 - FZÚ 2018 RIV NL eng J - Journal Article
Carrasco, I. - Bartosiewicz, Karol - Piccinelli, F. - Nikl, Martin - Bettinelli, M.
Structural effects and 5d→4f emission transition shifts induced by Yco-doping in Pr-doped K3Lu_1-xY_x(PO₄)₂.
Journal of Luminescence. Roč. 189, Sep (2017), s. 113-119. ISSN 0022-2313. E-ISSN 1872-7883
EU Projects: European Commission(XE) 316906 - LUMINET
Institutional support: RVO:68378271
Keywords : phase transition * X-ray diffraction * Pr3+ * luminescence * phosphates
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.732, year: 2017

In this work the structural and spectroscopic properties of several materials belonging to the K3Lu1−xYx(PO4)2 family and activated with 1% of Pr3+ have been studied in detail. The structural characterization has been performed by X-ray diffraction. The optical emission upon UV direct excitation into the dopant ion is dominated by the Pr3+4f15d1→4f2 interconfigurational transitions, the substitution of Lu by Y causes the blue shift of the 4f15d1→4f2 emission band. This is due to an important change of the Pr3+ local environment. No thermal quenching of the Pr3+ luminescence has been observed up to 500 K.
Permanent Link: http://hdl.handle.net/11104/0278148