标题: | Surface-enhanced Raman scattering of graphene with photo-assisted-synthesized gold nanoparticles |
作者: | Cheng, Cheng-En Lin, Chi-Yuan Chang, Hao-Yu Huang, Chen-Han Lin, Hsing-Ying Chen, Chia-Hao Hsu, Chia-Chen Chang, Chen-Shiung Chien, Forest Shih-Sen 光电工程学系 Department of Photonics |
公开日期: | 11-三月-2013 |
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 mu m. 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. (c) 2013 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OE.21.006547 http://hdl.handle.net/11536/21386 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.21.006547 |
期刊: | OPTICS EXPRESS |
Volume: | 21 |
Issue: | 5 |
起始页: | 6547 |
结束页: | 6554 |
显示于类别: | Articles |
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