Analysis of localized surface plasmon resonance in glass-supported gold nanoparticles with a hexagonal pattern

Akram Hajebifard; Jie Yuan; Shan Zou; Pierre Berini

doi:10.1117/12.2042346

11 October 2013 Analysis of localized surface plasmon resonance in glass-supported gold nanoparticles with a hexagonal pattern

Akram Hajebifard, Jie Yuan, Shan Zou, Pierre Berini

Author Affiliations +

Proceedings Volume 8915, Photonics North 2013; 89151M (2013) https://doi.org/10.1117/12.2042346
Event: Photonics North 2013, 2013, Ottawa, Canada

Abstract

An approach has been devised to create a hexagonal pattern of glass-supported gold nanoparticles (AuNPs) with controllable particle size and inter-particle spacing, by combining the self-assembly of block copolymer micelle-loaded metal precursors with a seeding growth method. Absorbance spectra as an optical response of the AuNP arrays were measured to obtain their LSPR peak position (λ_LSPR). There was a red shift in λ_LSPR. with increasing cover medium refractive index for all fabricated and simulated arrays. A comparison between computed and measured λ_LSPR. for a 33 nm AuNP array suggests that large nanoparticles produced by this fabrication method have ellipsoidal shapes rather than spherical ones, as in the case of small AuNP arrays.

Citation Download Citation

Akram Hajebifard, Jie Yuan, Shan Zou, and Pierre Berini "Analysis of localized surface plasmon resonance in glass-supported gold nanoparticles with a hexagonal pattern", Proc. SPIE 8915, Photonics North 2013, 89151M (11 October 2013); https://doi.org/10.1117/12.2042346

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