Ho.sup.3+./sup. codoping of YAG:Ce: acceleration of Ce.sup.3+./sup. decay kinetics by energy transfer

0508096 - FZÚ 2020 RIV NL eng J - Journal Article
Páterek, Juraj - Pokorný, Martin - Sýkorová, S. - Stehlík, S. - Polak, J. - Houžvička, J. - Nikl, Martin
Ho³⁺ codoping of YAG:Ce: acceleration of Ce³⁺ decay kinetics by energy transfer.
Journal of Luminescence. Roč. 213, Sep (2019), s. 469-473. ISSN 0022-2313. E-ISSN 1872-7883
R&D Projects: GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088; GA ČR GA16-15569S
Grant - others:OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institutional support: RVO:68378271
Keywords : YAG:Ce * acceleration of decay * non-radiative energy transfer * Ho3+ codoping * Er3+ codoping * Forster-Dexter model
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.280, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.jlumin.2019.05.056

Ho3+ codoping of YAG:Ce induces an acceleration of Ce3+ decay. This is caused by a non-radiative energy transfer from Ce3+ to Ho3+ which is enabled by a multipolar interaction between the ions. The photoluminescence decay characteristics were examined in a wide range of Ho3+ concentrations and 1/e decay time of Ce3+ was accelerated more than six times. The decay curves were analyzed using the Förster-Dexter model. The critical concentration of Ho3+, useful for quantitative decay time tailoring, was calculated. These results of the decay evaluation of YAG:Ce codoped with Ho3+ were compared to those obtained from the recent study on YAG:Ce codoped with Er3+
Permanent Link: http://hdl.handle.net/11104/0299091