A plasmonic fluid with dynamically tunable optical properties

Rama Ranjan Bhattacharjee; Ruipeng Li; Luis Estevez; Detlef-M. Smilgies; Aram Amassian; Emmanuel P. Giannelis

doi:10.1039/B919006F

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Journal of Materials Chemistry

Issue 46, 2009

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A plasmonic fluid with dynamically tunable optical properties

Rama Ranjan Bhattacharjee , Ruipeng Li , Luis Estevez , Detlef-M. Smilgies , Aram Amassian and Emmanuel P. Giannelis

J. Mater. Chem., 2009, 19, 8728-8731

DOI: 10.1039/B919006F
Received 14 Sep 2009, Accepted 19 Oct 2009
First published on the web 26 Oct 2009

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Abstract
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We report the first synthesis of a gold nanorod (GNR)-based nanocomposite that exhibits solid-like plasmonic properties while behaving in a liquid-like manner. Tuning the degree of GNR clustering controls the material's responsiveness to external stimuli, such as mechanical shearing, due to the sensitivity of the localized surface plasmon resonance to interparticle interactions.

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Video of dynamic color changes observed while shearing sample1
AVI (1453K)
Video of dynamic spectral changes observed while shearingsample 1
AVI (986K)
Thermogravimetric analysis (TGA) data for samples 1 and 2
PDF (145K)

Articles By

Rama Ranjan Bhattacharjee
Ruipeng Li
Luis Estevez
Detlef-M. Smilgies
Aram Amassian
Emmanuel P. Giannelis

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Journal of Materials Chemistry

A plasmonic fluid with dynamically tunable optical properties

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