Journal ArticleDOI
Raman spectroscopy in graphene
TLDR
In this article, the authors discuss the first-order and double resonance Raman scattering mechanisms in graphene, which give rise to the most prominent Raman features and give special emphasis to the possibility of using Raman spectroscopy to distinguish a monolayer from few-layer graphene stacked in the Bernal configuration.About:
This article is published in Physics Reports.The article was published on 2009-04-01. It has received 4945 citations till now. The article focuses on the topics: Bilayer graphene & Raman spectroscopy.read more
Citations
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Raman spectroscopy for the study of reduction mechanisms and optimization of conductivity in graphene oxide thin films
Xavier Díez-Betriu,S. Álvarez-García,Cristina Botas,Patricia Álvarez,Jorge Sánchez-Marcos,Carlos Prieto,Rosa Menéndez,Alicia de Andrés +7 more
TL;DR: In this article, the effects of low temperature annealing and chemical reduction on the properties of the films and present an optimized reduction process that allows the original 2D/G Raman intensity ratio of few-layer graphene to be recovered.
Journal ArticleDOI
Graphene flash memory.
Augustin J. Hong,Emil B. Song,Emil B. Song,Hyung Suk Yu,Matthew J. Allen,Jiyoung Kim,Jesse D. Fowler,Jonathan K. Wassei,Jonathan K. Wassei,Young-Ju Park,Yong Wang,Jin Zou,Richard B. Kaner,Bruce H. Weiller,Kang L. Wang +14 more
TL;DR: Graphene flash memory has the potential to exceed the performance of current flash memory technology by utilizing the intrinsic properties of graphene, such as high density of states, high work function, and low dimensionality.
Journal ArticleDOI
Melatonin as a powerful bio-antioxidant for reduction of graphene oxide
TL;DR: In this article, the authors used melatonin (MLT) as a powerful antioxidant and a biocompatible competitor of hydrazine in reduction of GO suspension, which showed that the deoxygenation efficiency of the reduced GO suspensions by MLT and under heating in an alkaline condition for 3 h was comparable with the efficiency obtained by hydrazines in similar conditions for 30 min.
Journal ArticleDOI
Helicity-Resolved Raman Scattering of MoS2, MoSe2, WS2, and WSe2 Atomic Layers
TL;DR: H helicity-resolved Raman scattering of the TMDC atomic layers is performed and new light is shed on the connection between photon helicity and valley polarization.
Synthesis of electrochemically-reduced graphene oxide film with controllable size and thickness and its usein supercapacitor
TL;DR: In this article, an electrochemical synthesis method of reducing graphene oxide (GO) under constant potential is reported, where the desired size and thickness of the film can be pre-determined by controlling the amount of precur- sor GO deposited on the electrode with defined shape and surface area.
References
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Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI
The electronic properties of graphene
TL;DR: In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.
Journal ArticleDOI
Two-dimensional gas of massless Dirac fermions in graphene
Kostya S. Novoselov,A. K. Geim,Sergey V. Morozov,Da Jiang,Mikhail I. Katsnelson,Irina V. Grigorieva,S. V. Dubonos,A. A. Firsov +7 more
TL;DR: This study reports an experimental study of a condensed-matter system (graphene, a single atomic layer of carbon) in which electron transport is essentially governed by Dirac's (relativistic) equation and reveals a variety of unusual phenomena that are characteristic of two-dimensional Dirac fermions.
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Raman spectrum of graphene and graphene layers.
Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TL;DR: 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.
Journal ArticleDOI
Interpretation of Raman spectra of disordered and amorphous carbon
Andrea C. Ferrari,John Robertson +1 more
TL;DR: In this paper, a model and theoretical understanding of the Raman spectra in disordered and amorphous carbon is given, and the nature of the G and D vibration modes in graphite is analyzed in terms of the resonant excitation of \ensuremath{\pi} states and the long-range polarizability of the long range bonding.