Controlled in situ growth of tunable plasmonic self-assembled nanoparticle arrays

Self-assembled silver nanoparticle (NP) arrays were produced by deposition at glancing angles on transparent stepped Al2O3 templates. The evolution of the plasmonic resonances has been monitored using reflection anisotropy spectroscopy (RAS) during growth. It is demonstrated that the morphology of t...

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Published inNanotechnology Vol. 23; no. 3; pp. 035606 - 1-9
Main Authors Verre, R, Fleischer, K, McGilp, J F, Fox, D, Behan, G, Zhang, H, Shvets, I V
Format Journal Article
LanguageEnglish
Published England IOP Publishing 27.01.2012
Subjects
Anisotropy
Arrays
Dispersions
Nanocomposites
Nanomaterials
Nanostructure
Plasmonics
Stepped
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Summary:Self-assembled silver nanoparticle (NP) arrays were produced by deposition at glancing angles on transparent stepped Al2O3 templates. The evolution of the plasmonic resonances has been monitored using reflection anisotropy spectroscopy (RAS) during growth. It is demonstrated that the morphology of the array can be tailored by changing the template structure, resulting in a large tunability of the optical resonances. In order to extract detailed information on the origin of the measured dichroic response of the system, a model based on dipolar interactions has been developed and the effect of tarnishing and morphological dispersion addressed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/23/3/035606