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Light emission from nanocrystalline Si inverse opals and controlled passivation by atomic layer deposited Al2O3

AuthorsGallego-Gómez, Francisco ; Ibisate, M. ; Golmayo, Dolores ; Palomares, F. Javier ; Blanco Montes, Álvaro ; López, Cefe
Issue Date2011
CitationAdvanced Materials 23(44): 5219-5223 (2011)
Abstract3D-nanostructured ensembles of silicon nanocrystals forming inverse opals, directly prepared by magnesioreduction, exhibited intense photoluminescence in a broadband range (visible and NIR). Light emission, which strongly diminished under photoexcitation, was preserved by engineering the nanocrystals interface with atomic layer deposition of alumina. The high accessibility of the nanocrystals throughout the self-supported structure was a key factor for efficient photoluminescence stabilization. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Identifiersdoi: 10.1002/adma.201101797
issn: 0935-9648
Appears in Collections:(ICMM) Artículos
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