title: Plasmonic engineering of spontaneous emission from silicon nanocrystals.
abstract: Silicon nanocrystals offer huge advantages compared to other semi-conductor quantum dots as they are made from an abundant, non-toxic material and are compatible with silicon devices. Besides, among a wealth of extraordinary properties ranging from catalysis to nanomedicine, metal nanoparticles are known to increase the radiative emission rate of semiconductor quantum dots. Here, we use gold nanoparticles to accelerate the emission of silicon nanocrystals. The resulting integrated hybrid emitter is 5-fold brighter than bare silicon nanocrystals. We also propose an in-depth analysis highlighting the role of the different physical parameters in the photoluminescence enhancement phenomenon. This result has important implications for the practical use of silicon nanocrystals in optoelectronic devices, for instance for the design of efficient down-shifting devices that could be integrated within future silicon solar cells.
authors.affiliation: 1] Laboratoire de Nanotechnologie et d'Instrumentation Optique (LNIO), Université de Technologie de Troyes, 12 rue Marie Curie, CS 42060, 10004 Troyes cedex, France [2] Institut Jean Lamour, CNRS/Nancy Université/UPV Metz, Bd des aiguillettes, 54500 Vandoeuvre-les-Nancy, France.
authors.forename: Julie
authors.initials: J
authors.lastname: Goffard
authors.forename: Davy
authors.initials: D
authors.lastname: Gérard
authors.forename: Patrice
authors.initials: P
authors.lastname: Miska
authors.forename: Anne-Laure
authors.initials: AL
authors.lastname: Baudrion
authors.forename: Régis
authors.initials: R
authors.lastname: Deturche
authors.forename: Jérôme
authors.initials: J
authors.lastname: Plain
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