Excitation profile of surface-enhanced Raman scattering in graphene-metal nanoparticle based derivatives

被引:162
作者
Fu, Xiaoqi [1 ,2 ]
Bei, Fengli [1 ]
Wang, Xin [1 ]
O'Brien, Stephen [2 ]
Lombardi, John R. [2 ]
机构
[1] Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Peoples R China
[2] CUNY City Coll, Dept Chem, New York, NY 10031 USA
基金
美国国家科学基金会; 中国国家自然科学基金;
关键词
CARBON NANOTUBES; LAYER GRAPHENE; GRAPHITE OXIDE; SINGLE-LAYER; SPECTROSCOPY; SILVER; SERS; MOLECULES; PYRIDINE;
D O I
10.1039/c0nr00135j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Understanding energy transfer mechanisms in graphene derivatives is strongly motivated by the unusually interesting electronic properties of graphene, which can provide a template for the creation of novel nanostructured derivatives. From a synthetic point of view, it is highly attractive to envision being able to synthesize pristine graphene from precursors such as graphene oxide (GO). While this goal may be challenging over large length-scales, it is possible to generate regions of graphene at the nanoscale, confirmed by Raman spectroscopy or other methods. We describe an in situ method of nucleating gold or palladium nanoparticles in the presence of ethylene glycol as a reducing agent, while simultaneously reducing GO to graphene. The Au nanoparticles aid in spectroscopic characterization by both quenching fluorescence, allowing the graphene D and G bands to be quantified, and yielding a surface enhancement of about two orders of magnitude. We observe the excitation profile (488-785 nm) of the surface enhanced Raman spectrum (SERS) of graphene with Au nanoparticles adsorbed on the surface. Both the D and G bands display a resonance at approximately 593 nm (2.09 eV). This resonance may be interpreted as a combination of the plasmon resonance at 548 nm and a likely contribution from charge transfer as well. In addition, we observe a stiffening of the G band compared with that of graphene. The mechanism of the SERS, whether plasmonic or charge transfer-based, enables insight into the electronic pathways available to the graphene-nanoparticle system. We discuss our results in the context of several existing studies of graphene-based nanostructure derivatives.
引用
收藏
页码:1461 / 1466
页数:6
相关论文
共 42 条
[1]   Sixfold ring clustering in sp2-dominated carbon and carbon nitride thin films:: A Raman spectroscopy study [J].
Abrasonis, G ;
Gago, R ;
Vinnichenko, M ;
Kreissig, U ;
Kolitsch, A ;
Möller, W .
PHYSICAL REVIEW B, 2006, 73 (12)
[2]   Carbon-based electronics [J].
Avouris, Phaedon ;
Chen, Zhihong ;
Perebeinos, Vasili .
NATURE NANOTECHNOLOGY, 2007, 2 (10) :605-615
[3]   Electrochemical reduction of noble metal compounds in ethylene glycol [J].
Bonet, F ;
Guéry, C ;
Guyomard, D ;
Urbina, RH ;
Tekaia-Elhsissen, K ;
Tarascon, JM .
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1999, 1 (01) :47-51
[4]   Preparation and layer-by-layer self-assembly of silver nanoparticles capped by graphite oxide nanosheets [J].
Cassagneau, T ;
Fendler, JH .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (11) :1789-1793
[5]   Printed graphene circuits [J].
Chen, Jian-Hao ;
Ishigami, Masa ;
Jang, Chaun ;
Hines, Daniel R. ;
Fuhrer, Michael S. ;
Williams, Ellen D. .
ADVANCED MATERIALS, 2007, 19 (21) :3623-3627
[6]   Monitoring dopants by Raman scattering in an electrochemically top-gated graphene transistor [J].
Das, A. ;
Pisana, S. ;
Chakraborty, B. ;
Piscanec, S. ;
Saha, S. K. ;
Waghmare, U. V. ;
Novoselov, K. S. ;
Krishnamurthy, H. R. ;
Geim, A. K. ;
Ferrari, A. C. ;
Sood, A. K. .
NATURE NANOTECHNOLOGY, 2008, 3 (04) :210-215
[7]   Nonvolatile switching in graphene field-effect devices [J].
Echtermeyer, Tim J. ;
Lemme, Max C. ;
Baus, Matthias ;
Szafranek, Bartholomaeus N. ;
Geim, Andre K. ;
Kurz, Heinrich .
IEEE ELECTRON DEVICE LETTERS, 2008, 29 (08) :952-954
[8]   Resonant Raman spectroscopy of disordered, amorphous, and diamondlike carbon [J].
Ferrari, AC ;
Robertson, J .
PHYSICAL REVIEW B, 2001, 64 (07)
[9]   Surface and Interference Coenhanced Raman Scattering of Graphene [J].
Gao, Libo ;
Ren, Wencai ;
Liu, Bilu ;
Saito, Riichiro ;
Wu, Zhong-Shuai ;
Li, Shisheng ;
Jiang, Chuanbin ;
Li, Feng ;
Cheng, Hui-Ming .
ACS NANO, 2009, 3 (04) :933-939
[10]   Spatially resolved raman spectroscopy of single- and few-layer graphene [J].
Graf, D. ;
Molitor, F. ;
Ensslin, K. ;
Stampfer, C. ;
Jungen, A. ;
Hierold, C. ;
Wirtz, L. .
NANO LETTERS, 2007, 7 (02) :238-242