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Demonstration of Improved Charge Transfer in GrapheneAu Nanorods Plasmonic Hybrids Stabilized by Benzyl Thiol Linkers
Joint Authors
Bianco, Giuseppe Valerio
Giangregorio, Maria Michela
Losurdo, Maria
Sacchetti, Alberto
Capezzuto, Pio
Bruno, Giovanni
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Hybrids based on graphene decorated with plasmonic gold (Au) nanostructures are being investigated as possible materials combination to add to graphene functionalities of tunable plasmon resonance and enhanced absorption at selected wavelength in the visible-near-infrared region of the spectrum.
Here, we report a solution drop-casting approach for fabricating stable hybrids based on chemical vapor deposition (CVD) graphene and Au nanorods, which are able to activate effective charge transfer from graphene.
We demonstrate that CVD graphene functionalization by benzyl thiol (BZT) provides the linker to strong anchoring, via S-Au bonds, Au nanorods to graphene.
Optical measurements by spectroscopic ellipsometry give evidence of the introduction of plasmon resonances at 1.85 and 2.25 eV in the Au nanorods/BZT/graphene hybrids, which enable surface enhanced Raman scattering (SERS) detection.
Furthermore, an effective electron transfer from graphene to Au nanorods, resulting in an enhancement of p-type doping of graphene with a consequent decrease of its sheet resistance, is probed by Raman spectroscopy and corroborated by electrical measurements.
American Psychological Association (APA)
Bianco, Giuseppe Valerio& Giangregorio, Maria Michela& Losurdo, Maria& Sacchetti, Alberto& Capezzuto, Pio& Bruno, Giovanni. 2016. Demonstration of Improved Charge Transfer in GrapheneAu Nanorods Plasmonic Hybrids Stabilized by Benzyl Thiol Linkers. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1109064
Modern Language Association (MLA)
Bianco, Giuseppe Valerio…[et al.]. Demonstration of Improved Charge Transfer in GrapheneAu Nanorods Plasmonic Hybrids Stabilized by Benzyl Thiol Linkers. Journal of Nanomaterials No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1109064
American Medical Association (AMA)
Bianco, Giuseppe Valerio& Giangregorio, Maria Michela& Losurdo, Maria& Sacchetti, Alberto& Capezzuto, Pio& Bruno, Giovanni. Demonstration of Improved Charge Transfer in GrapheneAu Nanorods Plasmonic Hybrids Stabilized by Benzyl Thiol Linkers. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1109064
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109064