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

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题名:	Surface-enhanced Raman scattering of graphene with photo-assisted- synthesized gold nanoparticles
作者:	Cheng, C.-E., Lin, C.-Y., Chang, H.-Y., Huang, C.-H., Lin, H.-Y., Chen, C.-H., Hsu, C.-C., Chang, C.-S., Chien, F.S.-S.
贡献者:	Department of Physics, Tunghai University
关键词:	Finite-difference time-domain algorithms;Gold nanoparticle;Gold Nanoparticles;Localized surface plasmon;Minimum diameters;Raman enhancement;Reliable methods;Surface enhanced Raman Scattering (SERS)
日期:	2013
上传时间:	2013-05-21T09:13:54Z (UTC)
摘要:	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 AuCl4 - 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. ? 2013 Optical Society of America.
關聯:	Optics Express 21 (5) , pp. 6547-6554
显示于类别:	[應用物理學系所] 期刊論文

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