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Zimmermann, Jörg
in Cooperation with on an Cooperation-Score of 37%
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Publications (3/3 displayed)
- 2017Recycling of Florescent Phosphor Powder Y<sub>2</sub>O<sub>3</sub>:Eu by Leaching Experimentscitations
- 2014Eu2+-doped CsBr photostimulable X-ray storage phosphors — analysis of defect structure by high-frequency EPRcitations
- 2001Superhard, conductive coatings for atomic force microscopy cantileverscitations
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article
Eu2+-doped CsBr photostimulable X-ray storage phosphors — analysis of defect structure by high-frequency EPR
Abstract
<jats:p> Eu <jats:sup>2+</jats:sup>-doped CsBr in form of needle image plates is a promising alternative to the granular Eu <jats:sup>2+</jats:sup>: 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 Eu <jats:sup>2+</jats:sup>-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 [Formula: see text] defect complex and a neutral trimeric [Formula: see text] defect complex (F<jats:sub>Z</jats:sub>-center), as well as acceptor-type F-centers [Formula: see text] that are generated by the trapping of electrons at initially neutral bromine vacancies. </jats:p>