Journal
THIN SOLID FILMS
Volume 520, Issue 1, Pages 179-185Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2011.07.012
Keywords
Graphene oxide; Silver; Nanoparticles; Surface-enhanced Raman scattering; Surface plasmon; Photo-induced growth
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Funding
- National Natural Science Foundation of China [50525204, 50832001, 50902057, 51002061]
- Jilin University [200903020]
- MOE [200801830025]
- Jilin University, China
- Science and Technology Development Programmer of Jilin Province [20090703]
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In the present study, a facile method is developed for the synthesis of graphene oxide-Ag nanocomposite (GOAg). The method involves the application of in situ photochemical deposition and growth processes under certain alkaline environments in the absence of chemical reductants and surfactants. Silver nanoparticles with monodisperse size are well dispersed on the surface of graphene oxide (GO). The roles of GO and NaOH in the formation of GOAg are discussed. A corresponding formation mechanism of GOAg is proposed. Fluorescence quenching and Raman enhancement are examined as well. (C) 2011 Elsevier B.V. All rights reserved.
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