Electron and hole trions in wide GaAs quantum wells

Esser, A., Runge, E., Zimmermann, R. and Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 2000. Electron and hole trions in wide GaAs quantum wells. physica status solidi (b) 221 (1) , pp. 281-286. 10.1002/1521-3951(200009)221:1<281::AID-PSSB281>3.0.CO;2-U

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Abstract

We study the photoluminescence lineshape of electron and hole trions as function of temperature both experimentally and theoretically. Trion spectra were measured in undoped high-quality GaAs quantum wells. Depending on the excitation energy, an excess hole or electron density is present in the quantum well. The optical response near the band edge is described within density matrix theory for the linear absorption regime. The calculated temperature-dependent asymmetric trion lineshape and the trion binding energy, found from a numerical solution of the trion Schr�dinger equation, as well as its dependence on external electric fields are compared to experiments.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	Wiley
ISSN:	1521-3951
Last Modified:	28 Oct 2022 08:38
URI:	https://orca.cardiff.ac.uk/id/eprint/71564

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