Title
E-V energy transfer-between F centers and distant <tex>$^{OH-}/_{OD}-ions$</tex> in CsBr crystals E-V energy transfer-between F centers and distant <tex>$^{OH-}/_{OD}-ions$</tex> in CsBr crystals
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
Journal of luminescence. - Amsterdam
Source (book)
11th International Conference on Dynamical Processes in Excited States of Solids, JUL 20-24, 1997, MITTELBERG, AUSTRIA
Volume/pages
76/7(1998) , p. 526-529
ISSN
0022-2313
ISI
000072874800120
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The E-V energy transfer from electronic excited states of F centers in CsBr to the vibrational modes of OD- impurities is studied with Raman scattering. It was found that even in unaggregated samples, with statistically distributed defects separated by fairly long distances, a strong E-V transfer exists. For moderate OD--concentrations( approximate to 10(-4)) its efficiency is almost 100%, similar to the one found for the next nearest (100)-neighbor F-H(OH-)-complex. Simultaneously, impurities or impurity pairs which have captured an extra electron are detected even at lowest temperatures. This is clear evidence that electron transfer occurs as well and suggests interrelation between the two transfer processes. (C) 1998 Elsevier Science B.V. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/d8efb7/8684863.pdf
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