DIRECT MEASUREMENT OF HEAVY-HOLE EXCITON TRANSPORT IN TYPE-II GAAS ALAS SUPERLATTICES/

Authors
GILLILAND GD ANTONELLI A WOLFORD DJ BAJAJ KK KLEM J BRADLEY JA
Citation
Gd. Gilliland et al., DIRECT MEASUREMENT OF HEAVY-HOLE EXCITON TRANSPORT IN TYPE-II GAAS ALAS SUPERLATTICES/, Physical review letters, 71(22), 1993, pp. 3717-3720
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
22
Year of publication
1993
Pages
3717 - 3720
Database
ISI
SICI code
0031-9007(1993)71:22<3717:DMOHET>2.0.ZU;2-#
Abstract
We have directly measured the transport of heavy-hole excitons in a ty pe-II GaAs/AlAs superlattice, Our results constitute the first direct confirmation of exciton localization in type-II structures and thermal activation to more mobile states. We have also developed a quantitati ve model to explain our transport and kinetics results, and have obtai ned the nonradiative interfacial defect density.