De, Goutam and Medda, Samar Kumar and De, Sucheta and Pal, Sudipto (2008) Metal nanoparticle doped coloured coatings on glasses and plastics through tuning of surface plasmon band position. BULLETIN OF MATERIALS SCIENCE, 31 (3). pp. 477-485. ISSN 0250-4707

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Abstract

Several noble metal nanoparticles doped sol-gel derived thin coloured films have been synthesized and characterized. These are pure (Ag, An, Cu and Pt), mixed/alloy (Ag-Cu, Au-Cu, Au-Ag and Au-Pt) nanoparticles in SiO(2), An in mixed Sio(2)-TiO(2) and SiO(2)-ZrO(2), An and Ag nanoparticles in inorganic-organic hybrid film matrices etc. This investigation leads to the development of tailor-made coloured coatings by tuning the surface plasmon resonance (SPR) band positions originating from the embedded nanometals by controlling mainly (i) refractive index of the film matrices and (ii) nanoalloy composition. In the later case a new layerby-layer (two-layer) synthetic protocol has been developed to prepare binary nanoalloy particles with controlled atomic ratios.

Item Type:	Article
Additional Information:	National Review and Coordination Meeting on Nanoscience and Nanotechnology, Hyderabad, INDIA, 2007
Uncontrolled Keywords:	Metal (single/mixed/alloy) nanoparticles; surface plasmon; coloured coatings on glasses and plastics; layer-by-layer coatings by sol–gel; refractive index tuning; NLO material
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Bula Ghosh
Date Deposited:	17 Jan 2012 10:19
Last Modified:	17 Jan 2012 10:19
URI:	http://cgcri.csircentral.net/id/eprint/312

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