Optical and structural properties of Ag-Si3N4 nanocermets prepared by means of ion-beam sputtering in alternate and codeposition modes.
Ion-beam sputtering deposition has been used in two ways, as granular multilayers and as cosputtered film, to elaborate Ag-Si3N4 nanocermets. Multilayer deposition creates slightly oblate clusters, and cosputtering produces two cluster families: elongated clusters within the Si3N4 matrix and larger ones at the film surface. The transmittance spectra of these nanocermets are characterized by a surface plasmon resonance. In the reported research the position of this resonance is related to the morphological properties of silver nanoclusters, which are studied by transmission-electron microscopy, grazing-incidence small-angle x-ray scattering, and atomic-force microscopy.
Camelio
Sophie
S
Laboratoire de Métallurgie Physique, Université de Poitiers, Unité Mixte de Recherche, Centre National de la Recherche Scientifique, France. sophie.camelio@univ-poitiers.fr
Babonneau
David
D
Girardeau
Thierry
T
Toudert
Johann
J
Lignou
Florence
F
Denanot
Marie-Françoise
MF
Maître
Nicolas
N
Barranco
Angel
A
Guérin
Philippe
P