Recently, silver nanoparticles (10-15 nm) embedded into silica thin films have been obtained in our laboratory by in situ reduction of a suitable silver organometallic compound (precursor) dissolved in a spin-on-glass (SOG) solution and subsequently span onto a substrate. Here, we present a study of the spatial distribution of these nanoparticles as a function of deposition and post-deposition parameters by using atomic force microscopy (AFM). We find that the distribution of the Ag particles is strongly dependent on the aging of the precursor-polymer blend obtained after the spin coating procedure, giving a uniform spatial distribution only with thermal annealing performed after several hours from the organometallic-polymer blend deposition. (C) 2002 Elsevier Science B,V. All rights reserved.
Recently, silver nanoparticles (10-15 nm) embedded into silica thin films have been obtained in our laboratory by in situ reduction of a suitable silver organometallic compound (precursor) dissolved in a spin-on-glass (SOG) solution and subsequently span onto a substrate. Here, we present a study of the spatial distribution of these nanoparticles as a function of deposition and post-deposition parameters by using atomic force microscopy (AFM). We find that the distribution of the Ag particles is strongly dependent on the aging of the precursor-polymer blend obtained after the spin coating procedure, giving a uniform spatial distribution only with thermal annealing performed after several hours from the organometallic-polymer blend deposition. (C) 2002 Elsevier Science B,V. All rights reserved.
Structure and properties of silver nanoparticles dispersed in SiO2 thin films obtained by in situ self-reduction
COMPAGNINI, Giuseppe Romano;D'URSO, LUISA;PUGLISI, Orazio Gaetano
2002-01-01
Abstract
Recently, silver nanoparticles (10-15 nm) embedded into silica thin films have been obtained in our laboratory by in situ reduction of a suitable silver organometallic compound (precursor) dissolved in a spin-on-glass (SOG) solution and subsequently span onto a substrate. Here, we present a study of the spatial distribution of these nanoparticles as a function of deposition and post-deposition parameters by using atomic force microscopy (AFM). We find that the distribution of the Ag particles is strongly dependent on the aging of the precursor-polymer blend obtained after the spin coating procedure, giving a uniform spatial distribution only with thermal annealing performed after several hours from the organometallic-polymer blend deposition. (C) 2002 Elsevier Science B,V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
