Light-induced charge transfers between defects in photorefractive materials

Autor(en): Schirmer, OF
Stichwörter: barium titanate; BATIO3; charge transfer; CRYSTALS; defects; Nuclear Science & Technology; photochromism; photorefractive effect; Physics; Physics, Condensed Matter; Physics, Fluids & Plasmas; RESONANCE; TRANSPORT
Erscheinungsdatum: 1999
Herausgeber: TAYLOR & FRANCIS LTD
Journal: RADIATION EFFECTS AND DEFECTS IN SOLIDS
Volumen: 149
Ausgabe: 1-4
Startseite: 1
Seitenende: 11
Zusammenfassung: 
The basic features of the photorefractive effect in oxide materials are outlined and the required knowledge on defects in such compounds is defined. The central question is: Between what charge states of what defects does an inhomogeneous light pattern redistribute charges in a photorefractive crystal? The joint investigation of light-induced EPR and optical absorption changes is introduced as a very useful method to answer this question, also for EPR-silent defect valencies and also at room temperature. Examples for the application of the method are given and its scope is discussed.
Beschreibung: 
8th Europhysical Conference on Defects in Insulating Materials (EURODIM98), UNIV KEELE, KEELE, ENGLAND, JUL 06-11, 1998
ISSN: 10420150
DOI: 10.1080/10420159908230124

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