期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 25, 期 -, 页码 74-78出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.09.027
关键词
Metallic plasmonics; Reduced graphene oxide; Surface-enhanced Raman scattering; Electrochemical deposition; Enhancement mechanism
资金
- National Natural Science Foundation of China [51272237, 50902123, 51172208]
- State Key Lab of Silicon Materials, Zhejiang University [SKL2011-20]
- Qianjiang Talent Program of Zhejiang Province [QJD1102007]
- Excellent Young Talents Foundation of Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-Tech University) [2011QN05]
A close-packed 2D assembly of plasmonic gold nanostructure was fabricated on a diamond-like carbon film by a two-step electrodeposition via reduced graphene oxide (rGO) modulation. The oxygen functionalities at the rGO surface which were controlled by changing electrochemical reduction time of GO provided reactive sites for nucleation and growth of gold nanoparticles. The Raman intensity of rhodamine B obtained from the gold assembly showed an 860-fold increase compared with that from Si reference, indicating a coupling of localized electromagnetic field enhancement and chemical enhancement Our research offered a novel way for metallic plasmonic fabrication to realize their potential applications in biochemical analysis, environmental monitoring, disease detection and food safety. (C) 2012 Elsevier B.V. All rights reserved.
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