TY - JOUR
T1 - Converting SrI 2 :Eu 2+ into a near infrared scintillator by Sm 2+ co-doping
AU - Awater, R. H.P.
AU - Alekhin, M. S.
AU - Biner, D. A.
AU - Krämer, K. W.
AU - Dorenbos, P.
N1 - Accepted Author Manuscript
PY - 2019
Y1 - 2019
N2 -
The luminescence and scintillation properties of SrI
2
single crystals doped with 5% Eu
2+
and 0.05%, 0.2% and 0.5% Sm
2+
are evaluated. X-ray excited and photoluminescence measurements show energy transfer from excited Eu
2+
ions to Sm
2+
ions. At a concentration of 0.5% Sm
2+
, the luminescence consists almost entirely of 740 nm emission from Sm
2+
5d-4f transitions. Co-doping SrI
2
:5% Eu
2+
with Sm
2+
provides a novel method to bypass the self-absorption problem encountered in large SrI
2
:Eu
2+
crystals and, at the same time, provides a unique near-infrared emitting scintillator with a light yield of approximately 40,000 photons/MeV.
AB -
The luminescence and scintillation properties of SrI
2
single crystals doped with 5% Eu
2+
and 0.05%, 0.2% and 0.5% Sm
2+
are evaluated. X-ray excited and photoluminescence measurements show energy transfer from excited Eu
2+
ions to Sm
2+
ions. At a concentration of 0.5% Sm
2+
, the luminescence consists almost entirely of 740 nm emission from Sm
2+
5d-4f transitions. Co-doping SrI
2
:5% Eu
2+
with Sm
2+
provides a novel method to bypass the self-absorption problem encountered in large SrI
2
:Eu
2+
crystals and, at the same time, provides a unique near-infrared emitting scintillator with a light yield of approximately 40,000 photons/MeV.
UR - http://www.scopus.com/inward/record.url?scp=85064073393&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2019.04.002
DO - 10.1016/j.jlumin.2019.04.002
M3 - Article
AN - SCOPUS:85064073393
VL - 212
SP - 1
EP - 4
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
ER -