Jakes, Peter ; Zimmermann, Jörg ; Seggern, Heinz von ; Ozarowski, Andrew ; Van Tol, Johan ; Eichel, Rüdiger-A. (2014)
Eu2+-doped CsBr photostimulable X-ray storage phosphors — analysis of defect structure by high-frequency EPR.
In: Functional Materials Letters, 07 (01)
doi: 10.1142/S1793604713500732
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Eu2+-doped CsBr in form of needle image plates is a promising alternative to the granular Eu2+:BaFBr X-ray storage phosphor with respect to photo-stimulated luminescence, yield and spatial resolution. However, in order to understand the corresponding mechanisms on an atomic scale, the defect structure of Eu2+-doped CsBr photostimulable X-ray storage phosphors has to be analyzed. By means of high-frequency electron paramagnetic resonance (EPR) spectroscopy, three types of defects have been observed — an electrically neutral dimeric defect complex and a neutral trimeric defect complex (FZ-center), as well as acceptor-type F-centers that are generated by the trapping of electrons at initially neutral bromine vacancies.
Typ des Eintrags: | Artikel |
---|---|
Erschienen: | 2014 |
Autor(en): | Jakes, Peter ; Zimmermann, Jörg ; Seggern, Heinz von ; Ozarowski, Andrew ; Van Tol, Johan ; Eichel, Rüdiger-A. |
Art des Eintrags: | Bibliographie |
Titel: | Eu2+-doped CsBr photostimulable X-ray storage phosphors — analysis of defect structure by high-frequency EPR |
Sprache: | Englisch |
Publikationsjahr: | 2014 |
Verlag: | World Scientific Publishing Co Pte Ltd |
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Functional Materials Letters |
Jahrgang/Volume einer Zeitschrift: | 07 |
(Heft-)Nummer: | 01 |
DOI: | 10.1142/S1793604713500732 |
Kurzbeschreibung (Abstract): | Eu2+-doped CsBr in form of needle image plates is a promising alternative to the granular Eu2+:BaFBr X-ray storage phosphor with respect to photo-stimulated luminescence, yield and spatial resolution. However, in order to understand the corresponding mechanisms on an atomic scale, the defect structure of Eu2+-doped CsBr photostimulable X-ray storage phosphors has to be analyzed. By means of high-frequency electron paramagnetic resonance (EPR) spectroscopy, three types of defects have been observed — an electrically neutral dimeric defect complex and a neutral trimeric defect complex (FZ-center), as well as acceptor-type F-centers that are generated by the trapping of electrons at initially neutral bromine vacancies. |
Freie Schlagworte: | X-ray storage phosphors, CsBr, defect structure, Eu2+-doping, EPR |
Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektronische Materialeigenschaften |
Hinterlegungsdatum: | 25 Mär 2015 13:04 |
Letzte Änderung: | 13 Aug 2021 14:08 |
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