http://www.cnr.it/ontology/cnr/individuo/prodotto/ID584

Sub-nanometric metallic Au clusters as efficient Er3+ sensitizers in silica (Articolo in rivista)

Type

Label

Sub-nanometric metallic Au clusters as efficient Er3+ sensitizers in silica (Articolo in rivista) (literal)

Anno

Alternative label

Trave, E; Mattei, G; Mazzoldi, P; Pellegrini, G; Scian, C; Maurizio, C; Battaglin, G (2006)
Sub-nanometric metallic Au clusters as efficient Er3+ sensitizers in silica
in Applied physics letters
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Trave, E; Mattei, G; Mazzoldi, P; Pellegrini, G; Scian, C; Maurizio, C; Battaglin, G (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Univ Padua, Dipartimento Fis, I-35131 Padua, Italy; CNR, INFM, ESRF, GILDA,CRG, F-38043 Grenoble, France; Univ Venice, Dipartimento Chim Fis, I-30123 Venice, Italy (literal)

Titolo

Sub-nanometric metallic Au clusters as efficient Er3+ sensitizers in silica (literal)

Abstract

Silica films co-implanted with Er and Au ions show an enhancement of rare earth photoluminescence after gold introduction in the matrix. Er excitation originates in a broad spectral region, from the red to the near ultraviolet. We have investigated the influence of gold aggregation on the optical properties of co-doped samples by varying the temperature of post-Au implantation annealing in the 400-900 degrees C range. Optical measurements and extended x-ray absorption analysis support the hypothesis of an energy transfer process mediated by sub-nanometric Au aggregates with metallic character that are optically activated mostly through electron interband transitions between d and sp-conduction levels. (c) 2006 American Institute of Physics. (literal)

Prodotto di