Theoretical description of the role of halides, silver, and surfactants on the structure of gold nanorods.
basic_science · Level V
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- Record sourced from PubMed, PMID 24397442.
- Also identified by DOI 10.1021/nl404661u.
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Abstract
Density functional theory simulations including dispersion provide an atomistic description of the role of different compounds in the synthesis of gold-nanorods. Anisotropy is caused by the formation of a complex between the surfactant, bromine, and silver that preferentially adsorbs on some facets of the seeds, blocking them from further growth. In turn, the nanorod structure is driven by the perferential adsorption of the surfactant, which induces the appearance of open {520} lateral facets.