INVESTIGADORES
BENITEZ Guillermo Alfredo
artículos
Título:
Silver electrodeposition on nanostructured gold: from nanodots to nanoripples
Autor/es:
P.C. DOS SANTOS CLARO; M. FONTICELLI; G. BENITEZ; O. AZZARONI; P.L. SCHILARDI; N.B. LUQUE; E. LEIVA; R.C. SALVAREZZA
Revista:
NANOTECHNOLOGY
Editorial:
INSTITUTE OF PHYSICS PUBLISHING
Referencias:
Año: 2006 vol. 17 p. 3428 - 3435
ISSN:
0957-4484
Resumen:
Abstract
Silver nanodots and nanoripples have been grown on nanocavity-patterned
polycrystalline Au templates by controlled electrodeposition. The initial step
is the growth of a first continuous Ag monolayer followed by preferential
deposition at nanocavities. The Ag-coated nanocavities act as preferred sites
for instantaneous nucleation and growth of the three-dimensional metallic
centres. By controlling the amount of deposited Ag, dots of ¡«50 nm average
size and ~4 nm average height can be grown with spatial and size
distributions dictated by the template. The dots are in a metastable state.
Further Ag deposition drives the dot surface structure to nanoripple
formation. Results show that electrodeposition on nanopatterned electrodes
can be used to prepare a high density of nanostructures with a narrow size
distribution and spatial order.¡«50 nm average
size and ~4 nm average height can be grown with spatial and size
distributions dictated by the template. The dots are in a metastable state.
Further Ag deposition drives the dot surface structure to nanoripple
formation. Results show that electrodeposition on nanopatterned electrodes
can be used to prepare a high density of nanostructures with a narrow size
distribution and spatial order.4 nm average height can be grown with spatial and size
distributions dictated by the template. The dots are in a metastable state.
Further Ag deposition drives the dot surface structure to nanoripple
formation. Results show that electrodeposition on nanopatterned electrodes
can be used to prepare a high density of nanostructures with a narrow size
distribution and spatial order.