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Shape Change and Color Gamut in Gold Nanorods, Dumbbells, and Dog Bones

✍ Scribed by X. Xu; M. B. Cortie


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
596 KB
Volume
16
Category
Article
ISSN
1616-301X

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✦ Synopsis


Abstract

It is shown here that deviations from a prolate ellipsoidal shape have a significant effect on the optical properties of gold nanorods. Transitions from rods to ‘dumbbell'‐ or ‘phi'‐shaped particles lead to a shift in the longitudinal plasmon peak in the blue and red directions, respectively. Development of ‘dog‐bone' shapes leads to a red‐shift and to the development of a third peak. A broad and flexible color gamut can be obtained.