TY  - JOUR
AU  - Lastusaari, M.
AU  - Brito, H. F.
AU  - Carlson, S.
AU  - Hölsä, J.
AU  - Laamanen, T.
AU  - Rodrigues, L. C. V.
AU  - Welter, E.
TI  - Valences of Dopants in Eu<sup>2+</sup> Persistent Luminescence Materials
JO  - Physica scripta
VL  - 89
IS  - 4
SN  - 1402-4896
CY  - Bristol
PB  - IoP Publ.
M1  - PUBDB-2015-01181
SP  - 044004
PY  - 2014
N1  - (c) The Royal Swedish Academy of Science.
AB  - The existence and effect of different rare earth (R<sup>2+/3+/IV</sup>) ions in SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>,R<sup>3+</sup> and M<sub>2</sub>MgSi<sub>2</sub>O<sub>7</sub>:Eu<sup>2+</sup>,R<sup>3+</sup> (M: Sr, Ba) persistent luminescence materials was studied with XANES (x-ray absorption near edge structure) measurements at HASYLAB/DESY (Hamburg, Germany) and MAX-lab (Lund, Sweden). The experiments were carried out at 298 K for selected rare earth (co-)dopants (Eu<sup>2+</sup>; Ce<sup>3+</sup>, Nd<sup>3+</sup>, Sm<sup>3+</sup>, Dy<sup>3+</sup> and Yb<sup>3+</sup>). The co-existence of Eu<sup>2+</sup> and Eu<sup>3+</sup> was observed in all materials. The co-dopants were always in the trivalent form.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000333449400005
DO  - DOI:10.1088/0031-8949/89/04/044004
UR  - https://bib-pubdb1.desy.de/record/207197
ER  -