LuAG:Pr codoped with Ho.sup.3+./sup.: acceleration of Pr.sup.3+./sup.decay by energy transfer

0507919 - FZÚ 2020 RIV GB eng J - Journal Article
Páterek, Juraj - Král, Robert - Pejchal, Jan - Prokeš, R. - Nikl, Martin
LuAG:Pr codoped with Ho³⁺: acceleration of Pr³⁺decay by energy transfer.
Radiation Measurements. Roč. 124, May (2019), s. 122-126. ISSN 1350-4487. E-ISSN 1879-0925
R&D Projects: GA MŠMT EF16_019/0000760
EU Projects: European Commission(XE) 644260 - INTELUM
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : LuAG:Pr * acceleration of decay * nonradiative energy transfer * Ho-3(+) codoping * Forster-dexter model
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.512, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.radmeas.2019.04.004

Ho3+ codoping of Lu3Al5O12 activated with Pr3+ (LuAG:Pr) induces an acceleration of Pr3+ decay kinetics. This is caused by nonradiative energy transfer from Pr3+ to Ho3+ driven by a multipolar electromagnetic interaction. Luminescence and scintillation properties of LuAG:Pr codoped with Ho3+ ions were studied over a wide concentration range. A significant acceleration of response was achieved. The Förster-Dexter model was used to analyze the decay kinetics of the Pr3+ luminescence center and the interaction between Pr3+ and Ho3+ ions. Several concentration characteristics useful for tailoring the timing and light output properties are presented.

Permanent Link: http://hdl.handle.net/11104/0298884