title: Photon antibunching from oriented semiconducting polymer nanostructures.
abstract: Fluorescence intensity correlation measurements reveal that z-oriented nanostructures from single chains of a cyano-substituted polyphenylene vinylene (CN-PPV) polymer act as single-quantum emitters. Photon antibunching is observed for the first time on individual polymer nanostructures with a modulation depth exceeding 90%, providing definitive proof that radiative recombination of molecular excitons occurs at a single localized site within the folded polymer chain.
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, USA.
authors.forename: Pradeep
authors.initials: P
authors.lastname: Kumar
authors.forename: Tae-Hee
authors.initials: TH
authors.lastname: Lee
authors.forename: Adosh
authors.initials: A
authors.lastname: Mehta
authors.forename: Bobby G
authors.initials: BG
authors.lastname: Sumpter
authors.forename: Robert M
authors.initials: RM
authors.lastname: Dickson
authors.forename: Michael D
authors.initials: MD
authors.lastname: Barnes