Optical spectroscopy on one and two exciton states in ZnSe-based single quantum dots

Authors
Kulakovskii, VD Weigand, R Bacher, G Seufert, J Kummell, T Forchel, A Leonardi, K Hommel, D
Citation
Vd. Kulakovskii et al., Optical spectroscopy on one and two exciton states in ZnSe-based single quantum dots, PHYS ST S-A, 178(1), 2000, pp. 323-326
Citations number
14
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
323 - 326
Database
ISI
SICI code
0031-8965(200003)178:1<323:OSOOAT>2.0.ZU;2-I
Abstract
The influence of the quantum dot (QD) asymmetry on the emission of one and two exciton states in the same single QD has been studied. A unified experi mental and theoretical picture of the impact of electron-hole exchange inte raction on the fine structure and the polarization properties of optical tr ansitions in QDs with C-2v symmetry is obtained. The relaxation time betwee n bright exciton levels has been found to be much longer than exciton lifet ime.