Abstract
We theoretically study the optical emission spectra of multi-exciton states using a configuration interaction approach for a few excitons and a density functional calculation for several excitons in a single quantum dot. Considering InP quantum dots as an example, we show that the biexciton binding energy is determined by a delicate balance of contributions from several configurations. We discuss how Coulomb correlations and the spin fine-structure of multi-excitonic states clearly manifest in the emission spectrum of highly excited quantum dots. We also predict a new kind of configuration crossing transitions that lead to weak emission lines several tens of meV below the exciton ground state.
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.
