Optical Properties of Star-Shaped Gold Nanoparticles | Zendy

Colleen L. Nehl | Zendy; Hongwei Liao | Zendy; Jason H. Hafner | Zendy

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Optical Properties of Star-Shaped Gold Nanoparticles

Author(s) -

Colleen L. Nehl,

Hongwei Liao,

Jason H. Hafner

Publication year - 2006

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/nl052409y

Subject(s) - plasmon , nanoparticle , materials science , polarization (electrochemistry) , colloidal gold , scattering , spectroscopy , star (game theory) , surface plasmon resonance , dielectric , molecular physics , optoelectronics , optics , nanotechnology , chemistry , physics , astrophysics , quantum mechanics

Here we report the synthesis, structure, and optical properties of ca. 100 nm star-shaped gold nanoparticles. Single particle spectroscopy measurements revealed that these nanoparticles have multiple plasmon resonances resulting in polarization-dependent scattering with multiple spectral peaks, which correspond to the different tips on the star-shaped structure. The plasmon resonances were also found to be extremely sensitive to the local dielectric environment.

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