INTERPLAY BETWEEN LOCALIZED AND FREE-EXCITON RECOMBINATION IN CDZNSE ZNSE MULTI-QUANTUM-WELL STRUCTURES/

Authors
GODLEWSKI M BERGMAN JP MONEMAR B KURTZ E HOMMEL D
Citation
M. Godlewski et al., INTERPLAY BETWEEN LOCALIZED AND FREE-EXCITON RECOMBINATION IN CDZNSE ZNSE MULTI-QUANTUM-WELL STRUCTURES/, Journal of crystal growth, 159(1-4), 1996, pp. 533-536
Citations number
15
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
159
Issue
1-4
Year of publication
1996
Pages
533 - 536
Database
ISI
SICI code
0022-0248(1996)159:1-4<533:IBLAFR>2.0.ZU;2-Y
Abstract
Optical properties of CdxZn1-xSe/ZnSe (x = 0.12) multi quantum wells g rown by molecular beam epitaxy on (100) GaAs substrate are presented a nd discussed. The photoluminescence, photoluminescence transients and optically detected cyclotron resonance experiments show that at low te mperature excitons are either bound or are localized by potential fluc tuations in the quantum wells. A strong contribution of a donor bound exciton emission to the low temperature PL spectra of quantum wells is shown. The chemical nature of the donor species is discussed.