Tunable infrared absorption by metal nanoparticles: The case for gold rods and shells

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dc.contributor.author Harris, N
dc.contributor.author Ford, MJ
dc.contributor.author Mulvaney, P
dc.contributor.author Cortie, MB
dc.date.accessioned 2010-05-28T09:48:24Z
dc.date.issued 2008
dc.identifier.citation Gold Bulletin, 2008, 41 (1), pp. 5 - 14
dc.identifier.issn 0017-1557
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/9251
dc.description.abstract Nanoparticles of elements such as Au, Al or Ag have optical extinction cross-section that considerably surpass their geometric cross-sections at certain wavelengths of light. While the absorption and scattering maxima for nanospheres of these elements are relatively insensitive to particle diameter, the surface plasmon resonance of Au nanoshells and nanorods can be readily tuned from the visible into the infrared by changing the shape of the particle. Here we compare nanoshells and nanorods in terms of their ease of synthesis, their optical properties, and their longer term technological prospects as tunable "plasmonic absorbers". While both particle types are now routinely prepared by wet chemistry, we submit that it is more convenient to prepare rods. Furthermore, the plasmon resonance and peak absorption efficiency in nanorods may be readily tuned into the infrared by an increase of their aspect ratio, whereas in nanoshells such tuning may require a decrease in shell thickness to problematic dimensions.
dc.language eng
dc.title Tunable infrared absorption by metal nanoparticles: The case for gold rods and shells
dc.type Journal Article
dc.parent Gold Bulletin
dc.journal.volume 1
dc.journal.volume 41
dc.journal.number 1 en_US
dc.publocation UK en_US
dc.identifier.startpage 5 en_US
dc.identifier.endpage en_US
dc.identifier.endpage 14 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 0912 Materials Engineering
dc.for 0303 Macromolecular and Materials Chemistry
dc.personcode 020302
dc.personcode 020323
dc.percentage 50 en_US
dc.classification.name Materials Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Materials and Technology for Energy Efficiency
utslib.copyright.status Open Access
utslib.copyright.date 2015-04-15 12:23:47.074767+10
pubs.consider-herdc true
utslib.collection.history General (ID: 2)

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