PHOTOLUMINESCENCE QUANTUM EFFICIENCY AND DYNAMICS IN ZNSE1-XTEX AND CDS1-XSEX MIXED-CRYSTALS

Authors
WESTPHALING R BREITKOPF T BAUER S KLINGSHIRN C
Citation
R. Westphaling et al., PHOTOLUMINESCENCE QUANTUM EFFICIENCY AND DYNAMICS IN ZNSE1-XTEX AND CDS1-XSEX MIXED-CRYSTALS, Journal of luminescence, 72-4, 1997, pp. 980-982
Citations number
4
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
72-4
Year of publication
1997
Pages
980 - 982
Database
ISI
SICI code
0022-2313(1997)72-4:<980:PQEADI>2.0.ZU;2-F
Abstract
We have studied the external photoluminescence quantum efficiency eta( ext) of ternary II-VI semiconductor solid solutions which is strongly influenced by the crystal quality due to the density of nonradiative r ecombination centers. The measurements were carried out with an integr ating sphere fitted into a cryostat. The results are confirmed by time -resolved photoluminescence experiments which show the influence of no nradiative recombination processes on the recombination times of local ized excitons.