title: Tailoring of quantum dot emission efficiency by localized surface plasmon polaritons in self-organized mesoscopic rings.
abstract: We report on the tailoring of quantum dot (QD) emission efficiency by localized surface plasmon polaritons in self-organized mesoscopic rings. Ag nanoparticles (NPs) with CdSe QDs embedded in a polymeric matrix are spatially organised in mesoscopic rings and coupled in a tuneable fashion by breath figure formation. The mean distance between NPs and QDs and consequently the intensity of QD photoluminescence, which is enhanced by the coupling of surface plasmons and excitons, are tuned by acting on the NP concentration.
authors.affiliation: Consiglio Nazionale delle Ricerche-Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), via P. Gobetti 101, 40129 Bologna, Italy. m.cavallini@bo.ismn.cnr.it.
authors.forename: Emanuela
authors.initials: E
authors.lastname: Margapoti
authors.forename: Denis
authors.initials: D
authors.lastname: Gentili
authors.forename: Matteo
authors.initials: M
authors.lastname: Amelia
authors.forename: Alberto
authors.initials: A
authors.lastname: Credi
authors.forename: Vittorio
authors.initials: V
authors.lastname: Morandi
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Cavallini