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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Spatially resolved spontaneous reactivity of diazonium salt on edge and basal plane of graphene without surfactant and its doping effect.
TL;DR: The successful spectroscopic elucidation of the different bonding characters of 4-BBDT depending on the site of graphene is beneficial for the fundamental studies about the charge transfer phenomena of graphene as well as for the potential applications, such as electronic devices, hybridized composite structures, etc.
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Laser-Induced Freestanding Graphene Papers: A New Route of Scalable Fabrication with Tunable Morphologies and Properties for Multifunctional Devices and Structures
TL;DR: A novel strategy is reported for production of freestanding GP through LIG technology and it is determined that the unique spatial configuration of polyimide (PI) paper is critical for the preparation of GP without the appearance of intense shape distortion.
Journal ArticleDOI
Preparation of graphene oxide by dry planetary ball milling process from natural graphite
Pranita Dash,Tapan Dash,Tapan Kumar Rout,A.K. Sahu,Surendra Kumar Biswal,Barada Kanta Mishra +5 more
TL;DR: Graphene oxides with different degrees of oxidation have been prepared by an in-house designed horizontal high energy planetary ball milling process as mentioned in this paper, where the prepared graphene oxides have been studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM) with selected area electron diffraction(SAED), high resolution transmission electron microscope (HRTEM), XPS, micro Raman spectroscopy, Fourier transform infrared (FTIR) spectra, thermogravimetric analysis (T
Journal ArticleDOI
Drawn on Paper: A Reproducible Humidity Sensitive Device by Handwriting
TL;DR: This article describes the development of a kind of full carbon-based humidity sensor fabricated on the paper substrate by handwriting, written by commercial pencils and drawn with an oxidized multiwalled carbon nanotubes ink marker, which exhibits good reproducibility and stability during the dynamic measurement.
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Intrinsic line shape of the Raman 2D-mode in freestanding graphene monolayers.
TL;DR: In this article, a comprehensive study of the 2D-mode Raman response of freestanding samples appears as bimodal, in stark contrast with the Lorentzian approximation that is commonly used for supported monolayers.
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.
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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.