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Shape Change and Color Gamut in Gold Nanorods, Dumbbells, and Dog Bones
Author(s) -
Xu X.,
Cortie M. B.
Publication year - 2006
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200500878
Subject(s) - gamut , nanorod , dumbbell , materials science , plasmon , prolate spheroid , rod , blueshift , shape change , optics , nanotechnology , optoelectronics , photoluminescence , biophysics , physics , physical therapy , alternative medicine , classical mechanics , pathology , biology , medicine
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.