Abstract
Multiexcitons confined in InGaAs/GaAs quantum dots (QDs) with lateral sizes slightly exceeding the exciton Bohr radius a X have been investigated by magneto-photoluminescence spectroscopy. The biexciton binding energy has been found to increase strongly with decreasing dot size. A magnetic field reduces the biexciton binding energy due to the spin-splitting of the exciton. A three-exciton complex is shown to exist due to the geometric confinement potential of the QD. A magnetic field reduces the exciton–exciton repulsion in the three-exciton complex when the magnetic length becomes smaller than the QD size.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
