Plasmon Tunability of Gold Nanostars at the Tip Apexes | Zendy

Nicolás PazosPérez | Zendy; Luca Guerrini | Zendy; Ramón A. ÁlvarezPuebla | Zendy

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Plasmon Tunability of Gold Nanostars at the Tip Apexes

Author(s) -

Nicolás PazosPérez,

Luca Guerrini,

Ramón A. ÁlvarezPuebla

Publication year - 2018

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.8b02686

Subject(s) - plasmon , materials science , homogeneous , surface plasmon resonance , nanotechnology , colloidal gold , infrared , salt (chemistry) , laser , optoelectronics , nanoparticle , optics , chemistry , physics , thermodynamics

Herein, we present an optimized bottom-up approach to fabricate homogeneous Au nanostars with plasmon resonances fully tunable between the red and the infrared. The synthetic method relies on the kinetic control of the reaction upon optimization of the reactant concentrations (i.e., gold seeds, reducing agent, and gold salt). Optical enhancing properties of the obtained materials are demonstrated by using SERS with visible and infrared lasers.

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