Surface-enhanced Raman scattering of graphene with photo-assisted-synthesized gold nanoparticles | Zendy

Cheng-En Cheng | Zendy; Chi-Yuan Lin | Zendy; Hao-Yu Chang | Zendy; Chen-Han Huang | Zendy; Hsing-Ying Lin | Zendy; ChiaHao Chen | Zendy; ChiaChen Hsu | Zendy; Chen-Shiung Chang | Zendy; Forest Shih-Sen Chien | Zendy

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Surface-enhanced Raman scattering of graphene with photo-assisted-synthesized gold nanoparticles

Author(s) -

Cheng-En Cheng,

Chi-Yuan Lin,

Hao-Yu Chang,

Chen-Han Huang,

Hsing-Ying Lin,

ChiaHao Chen,

ChiaChen Hsu,

Chen-Shiung Chang,

Forest Shih-Sen Chien

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.006547

Subject(s) - graphene , materials science , colloidal gold , raman scattering , raman spectroscopy , surface plasmon , surface plasmon resonance , plasmon , nanoparticle , optics , scattering , nanotechnology , optoelectronics , physics

This paper presents a convenient and reliable method to prepare gold nanoparticles (AuNPs) on graphene. Photo-assisted synthesis (PAS) was employed to grow AuNPs in AuCl(4)(-) electrolyte on graphene. The size of AuNPs could be as large as 130 nm. This optical method had a steady growth rate of AuNPs. The distribution of AuNPs was well controlled by focusing the laser for PAS. The minimum diameter of the distribution was approximately 1 μm. Surface-enhanced Raman scattering of graphene due to AuNPs was observed. Electrical fields near AuNPs calculated by the finite-difference time-domain algorithm ensured that the Raman enhancement was attributed to the localized surface plasmons of AuNPs.

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