Change search
ReferencesLink to record
Permanent link

Direct link
Effective medium theory characterization of Au/Ag nanoalloy-porous alumina composites
Show others and affiliations
1997 (English)In: Nanostructured materials, ISSN 0965-9773, E-ISSN 1872-9150, Vol. 9, no 1-8, 571-574 p.Article in journal (Refereed) PublishedText
Abstract [en]

The optical constants nAl and kAl of a 50/50 volume fraction Au/Ag alloy were derived synthetically by application of a Bruggeman (BG) effective medium expression. The alloy data base was then input into a Maxwell-Garnett (MG) effective medium expression to determine the absorption maximum of the nano- alloy/insulator composite (the volume fraction of the nano-alloy was equal to 5%). The absorption maximum (λmax) of the hypothetical composite was found to be 499 nm for spherical particles and was blue-shifted relative to that of a composite containing pure gold nanospheres (499 vs. 528 nm respectively). The transmission color at this wavelength was a red-orange. λmax in the range 512 to 519 nm (Au/Ag alloy between 60/40 - 70/30 volume fraction respectively) is needed to obtain the scarlet-red exhibited by the famous Lycurgus cup of 4th century Rome (1). © 1997 Acta Metallurgica Inc.

Place, publisher, year, edition, pages
1997. Vol. 9, no 1-8, 571-574 p.
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:kth:diva-182941ScopusID: 2-s2.0-0345847899OAI: oai:DiVA.org:kth-182941DiVA: diva2:918280
Note

NR 20160422

Available from: 2016-04-11 Created: 2016-02-24 Last updated: 2016-04-22Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Dutta, J.
In the same journal
Nanostructured materials
Nano Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 2 hits
ReferencesLink to record
Permanent link

Direct link