title: Room-temperature ordered photon emission from multiexciton states in single CdSe core-shell nanocrystals.
abstract: We report room-temperature ordered multiphoton emission from multiexciton states of single CdSe(CdZnS) core(-shell) colloidal nanocrystals (NCs) that are synthesized by wet chemical methods. Spectrally and temporally resolved measurements of biexciton and triexciton emission from single NCs are also presented. A simple four level system models the results accurately and provides estimates for biexciton and triexciton radiative lifetimes and quantum yields.
authors.affiliation: Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
authors.forename: Brent
authors.initials: B
authors.lastname: Fisher
authors.forename: Jean Michel
authors.initials: JM
authors.lastname: Caruge
authors.forename: Don
authors.initials: D
authors.lastname: Zehnder
authors.forename: Moungi
authors.initials: M
authors.lastname: Bawendi