Show simple item record

dc.contributor.authorSamaimongkol, Panupon
dc.contributor.authorRobinson, Hans D.
dc.date.accessioned2019-06-06T14:42:01Z
dc.date.available2019-06-06T14:42:01Z
dc.date.issued2019-03-01
dc.identifier.issn0017-1557
dc.identifier.urihttp://hdl.handle.net/10919/89891
dc.description.abstractWe confirm that the unusual purple color of the intermetallic compound AuAl 2 is of a plasmonic origin by launching surface plasmons (SPs) in thin AuAl 2 films. We measure the SP dispersion relation and also use the films to measure the index of refraction of sucrose solutions using standard SP resonance sensing. We find that the SP energy in planar AuAl 2 is approximately 2.1 eV, about 0.4 eV lower than in gold, and the material is highly resistant to oxidation. This is close to what is expected from previously reported measurements of the dielectric function of AuAl 2 . On this basis, we predict that AuAl 2 nanoparticles will a have very strong, spectrally nearly uniform light absorbance about an order of magnitude greater than standard carbon black. Such particles may therefore find applications as obscurants or as an alternative to more complex light-absorbing gold structures in areas such as photothermal therapy or solar steam generation, or in plasmonic catalysis.
dc.format.extentPages 27-33
dc.format.extent7 page(s)
dc.languageEnglish
dc.publisherSPRINGER HEIDELBERG
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000458762300004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1
dc.rightsIn Copyright (InC)
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectTechnology
dc.subjectChemistry, Inorganic & Nuclear
dc.subjectChemistry, Physical
dc.subjectMaterials Science, Multidisciplinary
dc.subjectChemistry
dc.subjectMaterials Science
dc.subjectPurple gold
dc.subjectSurface plasmons
dc.subjectThin films
dc.subjectNanoparticles
dc.subjectLight absorber
dc.subjectELECTRONIC-STRUCTURE
dc.subjectADHESION LAYER
dc.subjectTRANSFORMATIONS
dc.subjectABSORPTION
dc.subjectPTAL2
dc.subjectPhysical Chemistry
dc.titleLaunching low-energy surface plasmons in purple gold (AuAl2)
dc.typeArticle - Refereed
dc.date.updated2019-06-06T14:26:52Z
dc.description.versionPublished (Publication status)
dc.title.serialGOLD BULLETIN
dc.identifier.doihttps://doi.org/10.1007/s13404-018-0250-3
dc.type.otherArticle
dc.type.otherJournal
dc.identifier.volume52
dc.identifier.issue1
dc.identifier.orcidRobinson, Hans [0000-0003-3928-105X]
dcterms.dateAccepted2018-11-10
dc.identifier.eissn2190-7579
pubs.organisational-group/Virginia Tech/Science
pubs.organisational-group/Virginia Tech
pubs.organisational-group/Virginia Tech/All T&R Faculty
pubs.organisational-group/Virginia Tech/Science/Physics
pubs.organisational-group/Virginia Tech/Science/COS T&R Faculty


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record