Awater, R.H.P.; Alekhin, M.S.; Biner, Daniel; Krämer, Karl; Dorenbos, P. (2019). Converting SrI2:Eu2+ into a near infrared scintillator by Sm2+ co-doping. Journal of luminescence, 212, pp. 1-4. Elsevier 10.1016/j.jlumin.2019.04.002
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The luminescence and scintillation properties of SrI2 single crystals doped with 5% Eu2+ and 0.05%, 0.2% and 0.5% Sm2+ are evaluated. X-ray excited and
photoluminescence measurements show energy transfer from excited Eu2+ ions to Sm2+ ions. At a concentration of 0.5% Sm2+, the luminescence consists almost entirely of 740 nm emission from Sm2+ 5d-4f transitions. Co-doping SrI2:5% Eu2+ with Sm2+ provides a novel method to bypass the self-absorption problem encountered in large SrI2:Eu2+ crystals and, at the same time, provides a unique near-infrared emitting scintillator with a light yield of approximately 40,000 photons/MeV.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Biner, Daniel, Krämer, Karl |
Subjects: |
500 Science > 530 Physics 500 Science > 540 Chemistry |
ISSN: |
0022-2313 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Karl Krämer |
Date Deposited: |
02 Sep 2019 09:30 |
Last Modified: |
05 Dec 2022 15:30 |
Publisher DOI: |
10.1016/j.jlumin.2019.04.002 |
BORIS DOI: |
10.7892/boris.132838 |
URI: |
https://boris.unibe.ch/id/eprint/132838 |
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