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http://repositoriodigital.ipn.mx/handle/123456789/10681
Título : | Modelling of optical absorption of silver NP’s produced by UV radiation embedded in mesostructured silica films |
Palabras clave : | core-shell surfactant |
Fecha de publicación : | 16-ene-2013 |
Editorial : | Journal of Nanoparticle Research |
Descripción : | Hexagonal mesostructured films containing
silver ions were obtained by sol–gel method. Brij 58 was used to produce channels into the film, which house these ions. The films were exposure to UV radiation to produced silver metallic nanoparticles. The presence of the metallic nanoparticles was
determined by infrared spectroscopy and optical absorption. Besides, these nanoparticles and core–shell structures of silver–silver oxide nanoparticles
were identified by high-resolution transmission electronic microscopy. From these measurements, the obtained size range for silver nanoparticles was 6.1 nm. The absorption spectrum located at 440 nm
was modelled and well fitted with the Gans theory considering refractive index higher than the one coming from host matrix. This index is explained because the silver oxide shell modifies the local surrounding medium of the metallic nanoparticles. Instituto Politecnico Nacional |
URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/10681 |
Otros identificadores : | http://hdl.handle.net/123456789/163 |
Aparece en las colecciones: | Doctorado |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Modelling JNanoparticleR 2011.pdf | 628.69 kB | Adobe PDF | Visualizar/Abrir |
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