Journal Article

DESY-2013-01318

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Europium emission centers in CsI:Eu crystal

Gektin, A.Extern* ; Shiran, N.Extern* ; Vasyukov, S. (Corresponding author)Extern* ; Belsky, A.Extern* ; Sofronov, D.

2013
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.optmat.2013.07.029

Abstract: Absorption, excitation and luminescence spectra of pure and Eu doped CsI crystals were studied depending on the activator content, excitation energy, heat treatment and X-ray irradiation. Several types of Eu2+ related centers were found. It is shown that complex centers are stable at room temperature but their structure and concentration changes at heat treatment and under irradiation. The increased content of oxygen-containing radicals was determined by IR spectroscopy in Eu-containing crystals as opposed to pure one. It is supposed that some of emission centers in CsI:Eu are caused by the presence of intrinsic (vacancy type) and extrinsic (oxygen or hydroxyl ions) defects located in the nearest environment of Eu2+ ions.

Note: © Elsevier B.V.

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Contributing Institute(s):

1. DOOR-User (DOOR)

Research Program(s):

1. DORIS Beamline I (POF2-54G13) (POF2-54G13)

Experiment(s):

1. DORIS Beamline I (DORIS III)

Appears in the scientific report 2013

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Database coverage:
; BIOSIS Previews ; Current Contents - Physical, Chemical and Earth Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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