Control of the Interparticle Spacing in Gold Nanoparticle Superlattices

Article Abstract:

The formation of 2-D and 3-D superlattices of Au nanoclusters synthesized in nonionic inverse micelles, and capped with alkanethiol ligands, with alkane chains ranging from C6 to C18 is investigated. It is seen that the increase in the chain length of thiols, which play a major role in the ripening of these nanoclusters, and in the formation of superlattices, lead to the nanoclusters becoming more polydisperse and larger and the gaps between particles within superlattice domains increase.

Superlattices as materials, Superlattices

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Two- and three-dimensional Au nanoparticle/CoTMPyP self-assembled nanostructured materials: Film structure, tunable electrocatalytic activity, and plasmonic properties

Article Abstract:

Two- and three-dimensional Au nanoparticle/[tetrakis(N-methylpyridyl)porphyrinato]cobalt (CoTMPyP) nanostructured materials are prepared by 'bottom up' self-assembly. The electrocatalytic and plasmonic properties of the Au nanoparticle/CoTMPyP self-assembled nanostructured materials are tunable by controlled self-assembly of the Au nanoparticles and CoTMPyP on indium tin oxide electrode.

Cobalt

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Unique gold nanoparticle aggregates as a highly active surface-enhanced Raman scattering substrate

Article Abstract:

A detailed study of the surface-enhanced Raman scattering (SERS) activity of a unique gold nanoparticle aggregate (GNA) system that has unique surface properties and desired near-IR absorption for SERS applications is reported.

Absorption, Raman effect

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