Optical transmittance of multilayer graphene

@article{Zhu2014OpticalTO,
  title={Optical transmittance of multilayer graphene},
  author={Shou-En Zhu and Shengjun Yuan and G.C.A.M. Janssen},
  journal={arXiv: Materials Science},
  year={2014}
}
We study the optical transmittance of multilayer graphene films up to 65 layers thick. By combing large-scale tight-binding simulation and optical measurement on CVD multilayer graphene, the optical transmission through graphene films in the visible region is found to be solely determined by the number of graphene layers. We argue that the optical transmittance measurement is more reliable in the determination of the number of layers than the commonly used Raman Spectroscopy. Moreover, optical… Expand

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References

SHOWING 1-10 OF 10 REFERENCES
Optical conductivity of graphene in the visible region of the spectrum
We compute the optical conductivity of graphene beyond the usual Dirac-cone approximation, giving results that are valid in the visible region of the conductivity spectrum. The effect ofExpand
Counting graphene layers on glass via optical reflection microscopy
We show that optical reflection microscopy is a reliable method to simultaneously locate and count graphene layers deposited on bulk, transparent substrates such as soda-lime glass. The visibleExpand
Interference enhancement of Raman signal of graphene
Raman spectroscopic studies of graphene have attracted much interest. The G-band Raman intensity of a single layer graphene on Si substrate with 300nm SiO2 capping layer is surprisingly strong and isExpand
Universal optical conductance of graphite.
TLDR
The calculations within the Slonczewski-Weiss-McClure model explain well why the interplane hopping leaves the conductance of graphene sheets in graphite almost unchanged for photon energies between 0.1 and 0.6 eV, even though it significantly affects the band structure on the same energy scale. Expand
Raman spectrum of graphene and graphene layers.
TLDR
This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area. Expand
Origin of universal optical conductivity and optical stacking sequence identification in multilayer graphene.
We show that the origin of the universal optical conductivity in a normal N-layer graphene multilayer is an emergent chiral symmetry which guarantees that sigma(omega) = Nsigma_{uni} in both low andExpand
The electronic properties of graphene
This article reviews the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations. The Dirac electrons can beExpand
Modeling electronic structure and transport properties of graphene with resonant scattering centers
We present a detailed numerical study of the electronic properties of single-layer graphene with resonant (hydrogen) impurities and vacancies within a framework of noninteracting tight-binding modelExpand
Graphene: Carbon in Two Dimensions
Carbon is one of the most intriguing elements in the Periodic Table. It forms many allotropes, some known from ancient times (diamond and graphite) and some discovered 10-20 years ago (fullerenes andExpand