Tuning the energetics and tailoring the optical properties of silver clusters confined in zeolites

Fenwick, Olivier James; Coutiño-Gonzalez, Eduardo; Grandjean, Didier; Baekelant, Wouter; Richard, Fanny; Bonacchi, Sara; De Vos, Dirk; Lievens, Peter; Roeffaers, Maarten; Hofkens, Johan; Samori, Paolo

doi:10.1038/nmat4652

Tuning the energetics and tailoring the optical properties of silver clusters confined in zeolites

Onglets principaux

Fenwick, O. J., Coutiño-Gonzalez, E., Grandjean, D., Baekelant, W., Richard, F., Bonacchi, S., … Samori, P. (sans date). Tuning the energetics and tailoring the optical properties of silver clusters confined in zeolites. Nature Materials, 15(9), 1017-1022. doi:10.1038/nmat4652

Accès libre Peer reviewed
Version acceptée pour publication (post-print auteur)
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC]
Auteurs	Olivier James Fenwick Eduardo Coutiño-Gonzalez Didier Grandjean Wouter Baekelant Fanny Richard Sara Bonacchi Dirk De Vos Peter Lievens Maarten Roeffaers Johan Hofkens Paolo Samori
Unité de recherche du site	Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006
URL éditeur	http://www.nature.com/nmat/journal/v15/n9/full/nmat4652.html#affil-auth
Langue	en
Volume	15
Numéro	9
Page de début	1017
Page de fin	1022
Date de première publication	2016-06-06
ISSN	1476-1122 1476-4660
Titre de la source (revue, livre…)	Nature Materials
Résumé	The integration of metal atoms and clusters in well-defined dielectric cavities is a powerful strategy to impart new properties to them that depend on the size and geometry of the confined space as well as on metal–host electrostatic interactions. Show moreThe integration of metal atoms and clusters in well-defined dielectric cavities is a powerful strategy to impart new properties to them that depend on the size and geometry of the confined space as well as on metal–host electrostatic interactions. Here, we unravel the dependence of the electronic properties of metal clusters on space confinement by studying the ionization potential of silver clusters embedded in four different zeolite environments over a range of silver concentrations. Extensive characterization reveals a strong influence of silver loading and host environment on the cluster ionization potential, which is also correlated to the cluster’s optical and structural properties. Through fine-tuning of the zeolite host environment, we demonstrate photoluminescence quantum yields approaching unity. This work extends our understanding of structure–property relationships of small metal clusters and applies this understanding to develop highly photoluminescent materials with potential applications in optoelectronics and bioimaging. Show less
DOI	10.1038/nmat4652
Titre abrégé de la source	Nat Mater
Type de publication	ACL
Domaine	Chimie/Matériaux
Mots-clés	Electronic properties and materials Materials for optics Nanoscale materials Optics and photonics
Unité de recherche extérieure au site	Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
Fonction	aut crp
Audience	International