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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