← Back to Search
On The Nature Of Defects In Liquid-Phase Exfoliated Graphene
M. Bracamonte, G. I. Lacconi, S. Urreta, Luis E. F. Foa Torres
Published 2014 · Chemistry, Physics
Download PDFAnalyze on Scholarcy
Liquid-phase exfoliation is one of the most promising routes for large-scale production of multilayer graphene dispersions. These dispersions, which may be used in coatings, composites, or paints, are believed to contain disorder-free graphene multilayers. Here, we address the nature of defects in such samples obtained by liquid-phase exfoliation of graphite powder in N-methyl-2-pyrrolidone. Our Raman spectroscopy data challenge the assumption that these multilayers are free of bulk defects, revealing that defect localization strongly depends on the sonication time. For short ultrasound times, defects are located mainly at the layer edges but they turn out to build up in the bulk for ultrasonic times above 2 h. This knowledge may help to devise better strategies to achieve high-quality graphene dispersions.
This paper references
Liquid exfoliation of defect-free graphene.
J. Coleman (2013)
Two-dimensional gas of massless Dirac fermions in graphene
K. Novoselov (2005)
Influence of the atomic structure on the Raman spectra of graphite edges.
L. G. Cançado (2004)
Quantifying defects in graphene via Raman spectroscopy at different excitation energies.
L. G. Cançado (2011)
Introduction to Graphene-Based Nanomaterials: From Electronic Structure to Quantum Transport
Luis E. F. Foa Torres (2014)
The rise of graphene.
Andre K. Geim (2007)
Electric Field Effect in Atomically Thin Carbon Films
K. Novoselov (2004)
Towards wafer-size graphene layers by atmospheric pressure graphitization of silicon carbide.
K. Emtsev (2009)
Raman study on defective graphene: Effect of the excitation energy, type, and amount of defects
A. Eckmann (2013)
Raman Spectroscopy in Graphene Related Systems: JORIO:RAMAN O-BK
A. Jorio (2011)
Defect energies of graphite: Density-functional calculations
L. Li (2005)
Roll-to-roll production of 30-inch graphene films for transparent electrodes.
S. Bae (2010)
Raman spectroscopy of graphene edges.
C. Casiraghi (2009)
Raman Spectroscopy in Graphene Related Systems
A. Jorio (2011)
Superior thermal conductivity of single-layer graphene.
A. Balandin (2008)
Graphene and graphite nanoribbons: Morphology, properties, synthesis, defects and applications
M. Terrones (2010)
Liquid Exfoliation of Layered Materials
V. Nicolosi (2013)
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
C. Lee (2008)
Interpretation of Raman spectra of disordered and amorphous carbon
A. Ferrari (2000)
High-concentration solvent exfoliation of graphene.
U. Khan (2010)
Probing the nature of defects in graphene by Raman spectroscopy.
A. Eckmann (2012)
A roadmap for graphene
K. Novoselov (2012)
Inkjet-printed graphene electronics.
F. Torrisi (2012)
Graphene-based composite materials
S. Stankovich (2006)
Theory of double-resonant Raman spectra in graphene: Intensity and line shape of defect-induced and two-phonon bands
P. Venezuela (2011)
Critical parameters in exfoliating graphite into graphene.
Matat Buzaglo (2013)
Scalable, printable, surfactant-free graphene ink directly from graphite.
X. Han (2013)
Solvent-exfoliated graphene at extremely high concentration.
U. Khan (2011)
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Y. Zhang (2005)
Second-order overtone and combination Raman modes of graphene layers in the range of 1690-2150 cm(-1).
C. Cong (2011)
Raman spectroscopy as a versatile tool for studying the properties of graphene.
A. Ferrari (2013)
Scalable production of large quantities of defect-free few-layer graphene by shear exfoliation in liquids.
K. R. Paton (2014)
This paper is referenced by
Study of porphyrin-modified liquid exfoliated graphene field-effect transistors for evaluating DNA methylation degree.
Zhongrong Wang (2019)
Tannic acid-assisted green fabrication of functionalized graphene towards its enhanced compatibility in NR nanocomposite
Z. Zhao (2018)
Graphene and graphene-analogue nanosheets produced by efficient water-assisted liquid exfoliation of layered materials
Kausik Manna (2016)
Solution-Processed Hybrid Graphene Flake/2H-MoS2 Quantum Dot Heterostructures for Efficient Electrochemical Hydrogen Evolution
L. Najafi (2017)
Gate controllable resistive random access memory devices using reduced graphene oxide
Preetam Hazra (2016)
Surfactant- and sonication- free exfoliation approach to aqueous graphene dispersion
Shufen Wang (2018)
A comparative study on defect estimation using XPS and Raman spectroscopy in few layer nanographitic structures.
K. Ganesan (2016)
High-resolution patterning of graphene by screen printing with a silicon stencil for highly flexible printed electronics.
Woo Hyun (2015)
Directional Flow-Aided Sonochemistry Yields Graphene with Tunable Defects to Provide Fundamental Insight on Sodium Metal Plating Behavior.
Wenhui Liu (2018)
Facile, environmentally friendly, cost effective and scalable production of few-layered graphene
A. Amiri (2017)
A dual-criterion optimization for sulfonated asphalt-assisted aqueous phase exfoliation to prepare graphene suitable for protective coating of aluminium
Shengkai Yang (2020)
The Effect of Solvent Viscosity on Production of Few-layer Graphene from Liquid-phase Exfoliation of Graphite
Matthew A. Diasio (2019)
Graphene production via supercritical fluids
H. Gao (2016)
Direct Preparation of Few Layer Graphene Epoxy Nanocomposites from Untreated Flake Graphite.
J. Throckmorton (2015)
Printing 2D Materials
F. Torrisi (2018)
Printed Strain Sensors Using Graphene Nanosheets Prepared by Water‐Assisted Liquid Phase Exfoliation
Kausik Manna (2019)
Salt and water co-assisted exfoliation of graphite in organic solvent for efficient and large scale production of high-quality graphene.
J. Li (2019)
Exfoliated Graphene for Photothermal Biomedical Applications
Matthew D. J. Quinn (2018)
Graphene-based Coatings for Heat Exchangers
Marie Långberg (2015)
Correlation between lateral size and gas sensing performance of MoSe2 nanosheets
Shaolin Zhang (2017)
Pristine or Highly Defective? Understanding the Role of Graphene Structure for Stable Lithium Metal Plating
W. Liu (2019)
Transport, magnetic and vibrational properties of chemically exfoliated few-layer graphene
B. G. Márkus (2015)
Influence of surfactants on the electronic properties of liquid-phase exfoliated graphene
S. S. Sukumaran (2019)
Efficient Production of High-Quality Few-Layer Graphene Using a Simple Hydrodynamic-Assisted Exfoliation Method
Z. Zhang (2018)
Solution‐Processable 2D Materials Applied in Light‐Emitting Diodes and Solar Cells
A. G. Ricciardulli (2020)
Production and Patterning of Liquid Phase–Exfoliated 2D Sheets for Applications in Optoelectronics
S. Witomska (2019)
Fast Production of High-Quality Graphene via Sequential Liquid Exfoliation.
Wenhui Liu (2015)
Exfoliation of graphite to few-layer graphene in aqueous media with vinylimidazole-based polymer as high-performance stabilizer
J. Cui (2016)
3D PCL/graphene scaffold for bone tissue engineering
Weiguang Wang (2017)
Graphene quantum dots-synthesis, optical properties and cell imaging*
Multi-characterization of electron-induced defects in highly oriented pyrolytic graphite
Noelia Bajales (2016)
Poly methyl methacrylate-assisted exfoliation of graphite and its use in acrylonitrile-butadiene-styrene composites.
S. Gentiluomo (2020)See more