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Gold tip formation on perpendicularly aligned semiconductor nanorod assemblies

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dc.contributor.author O'Sullivan, Catriona
dc.contributor.author Ahmed, Shafaat
dc.contributor.author Ryan, Kevin M.
dc.date.accessioned 2012-02-17T16:13:35Z
dc.date.available 2012-02-17T16:13:35Z
dc.date.issued 2008
dc.identifier.uri http://hdl.handle.net/10344/2018
dc.description peer-reviewed en_US
dc.description.abstract A facile spin cast process is used for the instantaneous asymmetric formation of gold tips on perpendicularly aligned CdS nanorod superlattices. Tip size varies as a function of precursor solution concentration and growth time. A single uniform tip occurs on the end facets of each nanorod in the array when an optimised gold chloride solution is used, with multiple tipping 10 occuring with variations in precursor concentration. HRTEM shows that the gold tip growth does not always occur centro-symmetrically on the nanorods, with growth occuring on the (101) or the (001) facet of the wurtzite nanocrystal depending on the rod shape. X-ray diffraction confirms that the gold tips are crystalline with a 60% lattice mismatch with the wurtzite CdS nanocrystal suggesting strain relief may be a factor in tip formation. The gold tipped nanorods are further 15 characterised by photoluminescence spectroscopy. en_US
dc.language.iso eng en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartofseries Journal of Material Chemistry;18 pp. 5218-5222
dc.relation.uri http://dx.doi.org/10.1039/B810543J
dc.subject nanorods en_US
dc.subject gold tip formation en_US
dc.title Gold tip formation on perpendicularly aligned semiconductor nanorod assemblies en_US
dc.type Article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.restriction none en
dc.contributor.sponsor IRCSET
dc.relation.projectid 06/IN.1/I85


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