Wagner, H. P., Tranitz, H.-P., Langbein, Wolfgang Werner ![]() |
Abstract
The biexciton binding energy EXX is investigated in ZnSe/ZnMgSe quantum wells and quantum wires as a function of the lateral confinement by transient four-wave mixing. In the quantum wells one observes for decreasing well width a significant increase in the relative binding energy, saturating for well widths less than 8 nm. In the quantum wires an increase of 30% is found in the smallest quantum wire structures compared to the corresponding quantum well value. A simple analytical model taking into account the quantum confinement in these low-dimensional systems is used to explain the experimentally observed dependence of the biexciton binding energies.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Publisher: | Wiley |
ISSN: | 15213951 |
Date of Acceptance: | 16 November 2001 |
Last Modified: | 28 Oct 2022 08:36 |
URI: | https://orca.cardiff.ac.uk/id/eprint/71413 |
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