Synthesis, optical properties and modeling of silver core-silver oxide shell nanostructures in silica films

Por favor, use este identificador para citar o enlazar este ítem: http://repositoriodigital.ipn.mx/handle/123456789/10673

Título :	Synthesis, optical properties and modeling of silver core-silver oxide shell nanostructures in silica films
Palabras clave :	Thin films Surface plasmon resonance
Fecha de publicación :	16-ene-2013
Editorial :	SPIE Proceedings
Descripción :	Sol−gel silica films containing silver ions were annealed in a rich−hydrogen atmosphere and subsequently in a rich−oxygen atmosphere. High resolution transmission electronic microscopy measurements shown unusual core−shell structures of silver−silver oxide nanoparticles in these films. The optical properties of these nanostructures exhibited red shift and damping in the UV-vis spectra. In order to calculate the optical properties were used the Mie theory using two approaches. The first one, corresponding to the core−shell model that includes a refractive index of the shell (ns) different to the one of the host matrix (nm). While in the second approach, we replaced in the Mie theory the refractive index of the environment (silica) by a local refractive index (nl) depending on the thickness of the silver oxide shell. Both calculations given the same results because they are equivalents.
URI :	http://www.repositoriodigital.ipn.mx/handle/123456789/10673
Otros identificadores :	0277-786X http://hdl.handle.net/123456789/155
Aparece en las colecciones:	Doctorado

Ficheros en este ítem:

Fichero	Descripción	Tamaño	Formato
6641-72 Synthesis_core shell 2007.pdf		367.45 kB	Adobe PDF	Visualizar/Abrir

El Instituto Politécnico Nacional