Journal
MONATSHEFTE FUR CHEMIE
Volume 145, Issue 1, Pages 11-17Publisher
SPRINGER WIEN
DOI: 10.1007/s00706-013-0987-6
Keywords
Material science; Surface; Nanostructures; Aggregation; Raman spectroscopy
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A free-standing and flexible silver nanoparticle-graphene (Ag NP-GE) film with high surface-enhanced Raman scattering (SERS) sensitivity has been synthesized. Firstly, the highly stable and dispersive Ag NP-GE nanocomposite was fabricated by an in situ reduction method using graphene oxide sheets as substrates and ethylene glycol as a reduction agent in a solvothermal environment. Secondly, the Ag NP-GE films can be fabricated through vacuum filtration of the Ag NP-GE suspension. The highly SERS-active Ag nanoparticles and Ag nanoparticle aggregates make a significant contribution to the high sensitivity of SERS to rhodamine 6G molecules with an enhancement factor of 5.6 x 10(7).
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