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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Selective Proton/Deuteron Transport through Nafion|Graphene|Nafion Sandwich Structures at High Current Density.
TL;DR: Raman spectroscopy confirms that buried graphene layers are single-layer and relatively free of defects following the hot-press procedure used to make the sandwich structures.
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Homogeneous bilayer graphene film based flexible transparent conductor
TL;DR: In this paper, a bilayer graphene film grown with low pressure chemical vapor deposition was used as a transparent conductor for the first time, and the technique was demonstrated to be highly efficient in fabricating a conductive and uniform transparent conductor compared to multi-layer or single layer graphene.
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Synthesis of ethanol-soluble few-layer graphene nanosheets for flexible and transparent conducting composite films
D. D. Nguyen,Nyan-Hwa Tai,Yu-Lun Chueh,Shih-Wei Chen,Yin-Ju Chen,W.S. Kuo,Tsu-Wei Chou,Chain-Shu Hsu,Li-Jen Chen +8 more
TL;DR: A facile method of preparing few-layer graphene nanosheets (FLGs) is reported, which can be soluble in ethanol, and the promising applications of FLGs on graphene-based electronics, such as transparent electrode and flexible conducting film are demonstrated.
Journal ArticleDOI
Chemical and structural properties of reduced graphene oxide—dependence on the reducing agent
Beata Lesiak,Grzegorz Trykowski,József Tóth,Stanisław Biniak,László Kövér,N. Rangam,Leszek Stobinski,Artur Małolepszy +7 more
TL;DR: In this article, different reductants applied to GO led to modification of carbon to oxygen ratio, carbon lattice (vacancy) and C sp3 defects with various in-depth distribution of C sp 3 due to oxygen group reduction proceeding as competing processes at different rates between interstitial layers and in planes.
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Effect of peroxomonosulfate, peroxodisulfate and hydrogen peroxide on graphene oxide photocatalytic performances in methyl orange dye degradation
Kadarkarai Govindan,A.K. Suresh,Thangavel Sakthivel,Kalpana Murugesan,Raja Mohan,Venugopal Gunasekaran,Am Jang +6 more
TL;DR: The study substantiates methyl orange dye degradation undergoes via the multiple degradation pathway such as (i) azo bond cleavage and hydroxylation, (ii), asymmetric cleavage followed by reduction of sulfonate group and aromatic ring removal and (iii) consecutive demethylation reactions and sulfonates group removal.
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.
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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.
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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.
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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.