Exciton-acoustic-phonon scattering in (Zn,Cd)Se/ZnSe quantum wells: The influence of quantum confinement

Authors
Blewett, IJ Bain, DJ Tookey, A Brown, G Galbraith, I Kar, AK Vogele, B Prior, KA Cavenett, BC Wherrett, BS
Citation
Ij. Blewett et al., Exciton-acoustic-phonon scattering in (Zn,Cd)Se/ZnSe quantum wells: The influence of quantum confinement, PHYS REV B, 59(15), 1999, pp. 9756-9759
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
15
Year of publication
1999
Pages
9756 - 9759
Database
ISI
SICI code
0163-1829(19990415)59:15<9756:ESI(QW>2.0.ZU;2-4
Abstract
The well-width dependence of the exciton-acoustic-phonon scattering rate in (Zn,Cd)Se/ZnSe quantum-well structures is measured using time-integrated f emtosecond four-wave mixing at low temperatures, and calculated using a fin ite-depth quantum-well model. At fixed temperature the highest rates occur at those well widths for which the quantum confinement and the exciton bind ing energy are maximized. [S0163-1829(99)14115-8].