Cathodoluminescence and photoluminescence of Smn+ (n=2, 3) in oxide environments

Authors
Mikhail, P Hulliger, J Ramseyer, K
Citation
P. Mikhail et al., Cathodoluminescence and photoluminescence of Smn+ (n=2, 3) in oxide environments, SOL ST COMM, 112(9), 1999, pp. 483-488
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
112
Issue
9
Year of publication
1999
Pages
483 - 488
Database
ISI
SICI code
0038-1098(1999)112:9<483:CAPOS(>2.0.ZU;2-H
Abstract
Cathodoluminescence (CL) and photoluminescence (PL) of Smn+ (n = 2, 3) in c rystalline, glassy SrB4O7, and polycrystalline SrSO4, BaSO4 were traced in order to distinguish between the valence state 2+ and 3+. Whereas PL select ively excites both valence states, Sm3+ is preferentially seen by CL. Diffe rences in measured spectra are most likely due to the effect of ionization of Sm2+ to Sm3+ by accelerated electrons and an energy transfer from the ho st to Sm3+. (C) 1999 Elsevier Science Ltd. All rights reserved.