Optical spectroscopy on buried CdTe/Cd(Mn,Mg)Te single quantum dots

Authors
Bacher, G Welsch, MK McDonald, A Kummell, T Forchel, A Konig, B Becker, C Ossau, W Landwehr, G
Citation
G. Bacher et al., Optical spectroscopy on buried CdTe/Cd(Mn,Mg)Te single quantum dots, PHYS ST S-A, 178(1), 2000, pp. 359-363
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
178
Issue
1
Year of publication
2000
Pages
359 - 363
Database
ISI
SICI code
0031-8965(200003)178:1<359:OSOBCS>2.0.ZU;2-6
Abstract
Focused ion beam lithography and subsequent thermal annealing is used to pr epare buried CdTe/ Cd(Mg,Mn)Te single dots. A well defined lateral potentia l with a depth of more than 220 meV is achieved, thus exceeding the thermal energy kT at room temperature significantly. The high quantum efficiency o f the dots allows the investigation of single excitons as well as multiexci tons in the same single quantum dot.