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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Bottom-up synthesis of liquid-phase-processable graphene nanoribbons with near-infrared absorption.
Akimitsu Narita,Ivan Verzhbitskiy,Wout Frederickx,Kunal S. Mali,Soeren Alkaersig Jensen,Soeren Alkaersig Jensen,Michael Ryan Hansen,Michael Ryan Hansen,Mischa Bonn,Steven De Feyter,Cinzia Casiraghi,Xinliang Feng,Klaus Müllen +12 more
TL;DR: The broad absorption of the low-band-gap GNRs enables their detailed characterization by Raman and time-resolved terahertz photoconductivity spectroscopy with excitation at multiple wavelengths, including the NIR region, which provides further insights into the fundamental physical properties of such graphene nanostructures.
Journal ArticleDOI
Redox-Dependent Spatially Resolved Electrochemistry at Graphene and Graphite Step Edges
Aleix G. Güell,Anatolii S. Cuharuc,Yang-Rae Kim,Guohui Zhang,Sze-yin Tan,Neil Ebejer,Patrick R. Unwin +6 more
TL;DR: A microscopic model is proposed to interpret the EC response of graphene and aged HOPG considering the nontrivial electronic band structure and how enhanced activity at step edges is a subtle effect for Ru(NH3)6(3+/2+).
Journal ArticleDOI
Carbonisation of biomass-derived chars and the thermal reduction of a graphene oxide sample studied using Raman spectroscopy
TL;DR: In this article, carbonised chars and carbonised oxides were analysed with Raman spectroscopy in order to study the nanostructural development which occurs with increasingly severe heat treatments up to approximately 1000°C.
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Graphene oxide: from fundamentals to applications.
TL;DR: The fundamental characterization of graphene oxide (GO) and its future application perspectives are discussed with focus on practical gas sensing and optical sensing, and on the toxicity issue of GO, on the other hand.
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Anthraquinone on Porous Carbon Nanotubes with Improved Supercapacitor Performance
TL;DR: In this paper, an Anthraquinone (AQ) molecules were selected to decorate the lab-made hierarchical porous carbon nanotubes (HPCNTs) to obtain electrode materials for supercapacitors, which showed a remarkable capacitance increment in comparison with pure HPCNT when tested in 1 M H2SO4 aqueous solution.
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.