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DC Field | Value | Language |
---|---|---|
dc.contributor.author | De, Goutam | - |
dc.contributor.author | Rao, C N R | - |
dc.date.accessioned | 2012-02-13T10:35:57Z | - |
dc.date.available | 2012-02-13T10:35:57Z | - |
dc.date.issued | 2005 | - |
dc.identifier | 0959-9428 | en_US |
dc.identifier.citation | Journal of Materials Chemistry 15(8), 891-894 (2005) | en_US |
dc.identifier.uri | https://libjncir.jncasr.ac.in/xmlui/10572/395 | - |
dc.description.abstract | Au, Pt and Au-Pt alloy nanocrystals have been prepared in thin SiO2 film matrices by sol-gel spin-coating, followed by heating at 450degreesC in 10% H-2-90% Ar. X-Ray diffraction patterns reveal that the Au and Au-Pt nanocrystals have a preferential (111) orientation. Upon increasing the Pt concentration, part of the Pt does not alloy with Au, but instead forms a shell around the Au-Pt alloy core. The alloy composition itself goes up to Au(50) : Pt(50), and the Pt shells are formed around the alloy above an alloy composition of Au(75) : Pt(25). The surface plasmon resonance (SPR) band at 544 nm of Au gradually disappears due to the formation of Au-Pt alloys and core - shell structures. | en_US |
dc.description.uri | http://dx.doi.org/10.1039/b412429d | en_US |
dc.language.iso | en | en_US |
dc.publisher | Royal Society Chemistry | en_US |
dc.rights | © 2005 The Royal Society of Chemistry | en_US |
dc.subject | Optical-Properties | en_US |
dc.subject | Nanoparticles | en_US |
dc.subject | Silver | en_US |
dc.subject | Gold | en_US |
dc.subject | Sol | en_US |
dc.subject | Particles | en_US |
dc.subject | Copper | en_US |
dc.subject | Clusters | en_US |
dc.subject | Spectra | en_US |
dc.subject | Sio2 | en_US |
dc.title | Au–Pt alloy nanocrystals incorporated in silica films | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
Files in This Item:
File | Description | Size | Format | |
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2005 J.Mater.Chem.15,891.pdf | 322.81 kB | Adobe PDF | View/Open |
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