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

Wiley-VCH Verlag GmbH
Publication Type:
Journal article
Xu Xiaoda and Cortie Michael 2006, 'Shape change and color gamut in gold nanorods, dumbbells, and dog bones', Wiley-V C H Verlag Gmbh, vol. 16, no. 16, pp. 2170-2176.
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It is shown here that deviations from 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.
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