Uniaxial strain on graphene: Raman spectroscopy study and band-gap opening. ACS Nano 2, 2301–2305 (2008). Article MathSciNet Google Scholar Pereira, V. M., Castro Neto, A. H. & Peres, N. M. R. Tight-binding approach to uniaxial strain in graphene. Phys. Rev. B 80, 045401 (...
Graphene-enhanced Raman scattering (GERS) on isotopically labelled bilayer and a single layer of pristine and partially hydrogenated graphene has been studied. The hydrogenated graphene sample showed a change in relative intensities of Raman bands of Rho
The strong Raman signal of single layer graphene compared to graphite is explained by an interference enhancement model. We have also studied the effect of substrates, the top layer deposition, the annealing process, as well as folding (stacking order) on the physical and electronic properties of...
Abstract. We report on confocal Raman spectroscopy on a few-layer graphene flake. Adjacent single- and double-layer graphene sections allow mapping the transition in vibrational and electronic properties to a second stacked graphene sheet and with it a weak interlayer coupling. Most prominently the ...
We investigated the temperature dependence of the frequency of G peak in the Raman spectra of on Si/substrates. The micro-Raman spectroscopy was carried out under the 488 nm laser excitation over the temperature range from -190 to +100 degrees C. The extracted value of the temperature coefficie...
Chemical analysis of graphene oxide films after heat and chemical treatments by X-ray photoelectron and Micro-Raman spectroscopy Several nanometer-thick graphene oxide films deposited on silicon nitride-on silicon substrates were exposed to nine different heat treatments (three in Ar... D Yang,A Vela...
Ferrari, A. C. Raman spectroscopy of graphene and graphite: disorder, electron-phonon coupling, doping and 10 nonadiabatic effects.Solid State Commun.143, 47–57 (2007). ArticleCASADSGoogle Scholar Tan, P. H. et al. The shear mode of multilayer graphene.Nat. Mater.11, 294–300 (2012)....
aCalculated IR.bIR observed on a Ge internal multireflection plate (red, spectrum of Zn-1; in black, spectrum of Zn-2).cCalculated Raman.dRaman observed on CaF2(orange, sample polymerized under standard conditions; green, sample polymerized exhaustively; blue, spectrum of Zn-2). Black arrows...
The Raman spectra of as-produced graphene samples are shown in Fig.3. The monolayer and 3-layer graphene samples are plotted in black solid line and red short dash line, respectively. From the two curves, we can see three typical peaks of graphene around 1340 cm, 1590 cm and 2660...
Recently, GQDs nanocomposite-based studies for Raman sensors, especially SERS, have substantially increased. Several biofield areas have been explored, including biochemical analytes, cancer cells, and bacterial protein, as shown in Table3. The unique physicochemical properties of GQDs are promising to ...