Graphene articles within Nature Communications

Featured

  • Article
    | Open Access

    Intrinsic limitations of nanoporous graphene limit its applications in water treatment. Here the authors produce post-treatment-free, low-cost graphene-based membranes from renewable biomass and demonstrate their high water permeance and antifouling properties using real seawater.

    • Dong Han Seo
    • , Shafique Pineda
    •  & Kostya (Ken) Ostrikov

  • Article
    | Open Access

    Ambient environmental thermal fluctuations offer an abundant yet difficult to harvest renewable energy source, when compared to static thermal gradients. Here, by tuning the thermal effusivity of composite phase change materials, the authors are able to harvest energy from diurnal ambient temperature changes.

    • Anton L. Cottrill
    • , Albert Tianxiang Liu
    •  & Michael S. Strano

  • Article
    | Open Access

    Conductance quantization is the hallmark of non-interacting confined systems. The authors show that the quantization in graphene nanoconstrictions with low edge disorder is suppressed in the quantum Hall regime. This is explained by the addition of new conductance channels due to electrostatic screening.

    • José M. Caridad
    • , Stephen R. Power
    •  & Peter Bøggild

  • Article
    | Open Access

    Strain is an effective tool to tune the optoelectronic properties of two-dimensional materials. Here, the authors demonstrate that second harmonic generation can be used to extract the full strain tensor of MoS2 and to spatially image its two-dimensional strain field.

    • Lukas Mennel
    • , Marco M. Furchi
    •  & Thomas Mueller

  • Article
    | Open Access

    Non-equilibrium ultrafast processes in graphene entail relaxation pathways involving electron–electron and electron–phonon scattering events. Here, the authors probe graphene optical phonons at high electronic temperatures by means of Raman spectroscopy under pulsed excitation

    • C. Ferrante
    • , A. Virga
    •  & T. Scopigno

  • Article
    | Open Access

    Surface-enhanced Raman spectroscopy (SERS) is a promising technology for sensitive optical sensors, generally using rough metal films. Here, Liu et al. synthesize high-quality graphene quantum dot films which offer a large SERS enhancement due to a strong light-matter interaction with Van Hove singularities.

    • Donghua Liu
    • , Xiaosong Chen
    •  & Dacheng Wei

  • Article
    | Open Access

    Graphene oxide is a graphene derivative showing wide applications, but it suffers from harsh synthetic conditions and long reaction time. Pei et al. show a green electrochemical method to fully oxidize the graphite lattice in a few seconds, which is over 100 times faster than existing methods.

    • Songfeng Pei
    • , Qinwei Wei
    •  & Wencai Ren

  • Article
    | Open Access

    Large-scale graphene production remains challenging because of the tendency of graphene to stack with itself, which requires its dispersion in large amounts of solvent. Here the authors achieve the environmentally favourable production of highly concentrated graphene in water through a non-dispersion, flocculation strategy.

    • Lei Dong
    • , Zhongxin Chen
    •  & Kian Ping Loh

  • Article
    | Open Access

    Nonlocal resistances in graphene Hall bars attributed to neutral current Hall effects have been mainly measured at the microscale. Here, the authors observe consistently strong nonlocal signals in Hall bars with channel length ranging from the micrometer up to the millimeter scale, and explain them by field-induced spin-split edge states.

    • Mário Ribeiro
    • , Stephen R. Power
    •  & Fèlix Casanova

  • Article
    | Open Access

    Membrane separation technologies show promise for CO2 capture, but typically suffer from a trade-off between permeance and selectivity. Here, the authors produce hollow fiber membranes coated with graphene oxide and a CO2-philic agent that can efficiently separate CO2 from flue gas under wet conditions.

    • Fanglei Zhou
    • , Huynh Ngoc Tien
    •  & Miao Yu

  • Article
    | Open Access

    The reason why the surface adhesion of a graphene monolayer is much greater than that of graphene multilayers remains unclear. Here, the authors build a model to show interlayer sliding and fracture mode mixity cause the decrease in adhesion toughness of multilayer graphene.

    • Joseph D. Wood
    • , Christopher M. Harvey
    •  & Simon Wang

  • Article
    | Open Access

    The lack of band gap controllability in graphene severely restricts its use in nanoelectronics. Here, the authors predict that post-graphene organic Dirac materials should allow for exceptional electronic tunability between graphene-like semimetallicity and multi-radical and/or closed-shell semiconducting states.

    • Isaac Alcón
    • , Francesc Viñes
    •  & Stefan T. Bromley

  • Article
    | Open Access

    The capability of positioning target molecules onto the edges of patterned graphene nanostructures is highly desirable. Here, the authors demonstrate that the atomically sharp edges of graphene can be used as dielectrophoretic tweezers for gradient-force-based trapping applications.

    • Avijit Barik
    • , Yao Zhang
    •  & Sang-Hyun Oh

  • Article
    | Open Access

    Graphene holds promise as a protective coating; however, lattice defects may hinder its practical applicability. Here, the authors investigate the oxidation behavior of graphene-coated copper foils and unveil the interplay between structural defects and oxygen radicals from water molecules in ambient air.

    • Jinsung Kwak
    • , Yongsu Jo
    •  & Soon-Yong Kwon

  • Article
    | Open Access

    The mechanical resonances of atomically thin membranes show nonlinear responses at driving forces in the picoNewton range. Here, the authors develop a contactless method to extract the Young’s modulus of 2D materials from the nonlinear dynamic response of these nanomechanical resonators.

    • D. Davidovikj
    • , F. Alijani
    •  & P. G. Steeneken

  • Article
    | Open Access

    Current proposals suitable for experimental realization of topologically protected optical states rely on complicated structures or only operate in the microwave regime. Here, Pan et al. propose topological Dirac plasmons to be realized at infrared frequencies in a periodically patterned graphene monolayer, subject to a magnetic field of only 2 Tesla.

    • Deng Pan
    • , Rui Yu
    •  & F. Javier García de Abajo

  • Article
    | Open Access

    Two-dimensional Dirac semimetals are known to host fermionic excitations which can mimic physics usually found in ultrarelativistic quantum mechanics. Here, the authors unveil the existence of another type of quasiparticle, bielectron vortices, which are bosonic and may give rise to new types of condensates.

    • C. A. Downing
    •  & M. E. Portnoi

  • Article
    | Open Access

    Harmonic generation is a nonlinear optical process occurring in a variety of materials; the higher orders generation is generally less efficient than lower orders. Here, the authors report that the third-harmonic is thirty times stronger than the second-harmonic in monolayer MoS2.

    • Antti Säynätjoki
    • , Lasse Karvonen
    •  & Zhipei Sun

  • Article
    | Open Access

    Atomically precise graphene nanoribbons are a promising platform for tailored electron transport, yet they suffer from low conductivity. Here, the authors devise a strategy to laterally extend conventional chevron nanoribbons, thus achieving increased electrical conductivity and improved chemical sensing capabilities.

    • Mohammad Mehdi Pour
    • , Andrey Lashkov
    •  & Alexander Sinitskii

  • Article
    | Open Access

    Producing graphene oxide membranes with narrow channels is desirable for small molecule separations, but methods to narrow the 2D spacing typically result in membrane damage. Here the authors exploit electrophoresis-deposition to prepare GO membranes that are reduced in situ, leading to narrow and uniform 2D channels.

    • Benyu Qi
    • , Xiaofan He
    •  & Yuhan Sun

  • Article
    | Open Access

    Antiferromagnetic spintronics may pave the way to innovative information storage devices with perpendicular coupling, however experimental demonstrations are still sparse. Here, the authors demonstrate a graphene-mediated perpendicular antiferromagnetic coupling between Fe and Co layers in a Fe/graphene/Co sandwich structure.

    • P. Gargiani
    • , R. Cuadrado
    •  & M. Valvidares

  • Article
    | Open Access

    Spintronic devices with full electrical control rely on electrical generation and detection of spin currents in the absence of magnetic materials. Here, the authors use Pt, a non-magnetic metal, to generate and detect pure spin currents in a few-layer graphene channel, achieving a remarkable spin-to-charge voltage signal at room temperature.

    • Wenjing Yan
    • , Edurne Sagasta
    •  & Fèlix Casanova

  • Article
    | Open Access

    Graphene nanoribbons show promise for high-performance field-effect transistors, however they often suffer from short lengths and wide band gaps. Here, the authors use a bottom-up synthesis approach to fabricate 9- and 13-atom wide ribbons, enabling short-channel transistors with 105 on-off current ratio.

    • Juan Pablo Llinas
    • , Andrew Fairbrother
    •  & Jeffrey Bokor

  • Article
    | Open Access

    Photodetectors based on 2D transition metal dichalcogenides exhibit ever increasingly competitive performance, yet not superior to that of alternative technologies. Here, the authors devise a MoS2-based phototransistor with an out-of-plane junction, yielding a record detectivity combined with broadband response.

    • Nengjie Huo
    •  & Gerasimos Konstantatos

  • Article
    | Open Access

    When the continuous scale symmetry of a quantum system is broken, anomalies occur which may lead to quantum phase transitions. Here, the authors provide evidence for such a quantum phase transition in the attractive Coulomb potential of vacancies in graphene, and further envision its universality for diverse physical systems.

    • O. Ovdat
    • , Jinhai Mao
    •  & E. Akkermans

  • Article
    | Open Access

    In seemingly indistinguishable bilayer graphene samples, two distinct transport regimes, insulating and metallic, have been identified experimentally. Here, the authors demonstrate that these two states originate from the interplay between extended defects and evanescent modes at the Dirac point.

    • Sam Shallcross
    • , Sangeeta Sharma
    •  & Heiko B. Weber

  • Article
    | Open Access

    Atomically thin black phosphorus shows promise for optoelectronics and photonics, yet its instability under environmental conditions and the lack of well-established large-area synthesis protocols hinder its applications. Here, the authors demonstrate a stable black phosphorus ink suitable for printed ultrafast lasers and photodetectors.

    • Guohua Hu
    • , Tom Albrow-Owen
    •  & Tawfique Hasan

  • Article
    | Open Access

    In 2D spin-valve devices, effective spin injection and detection can be potentially realised combining graphene with an ideal hBN tunnel barrier. Here, the authors report that a bilayer hBN tunnel barrier allows up to 100% spin-injection and detection in a fully hBN-encapsulated graphene heterostructure.

    • M. Gurram
    • , S. Omar
    •  & B. J. van Wees

  • Article
    | Open Access

    In graphene, electrons possess zero effective mass in proximity to the Dirac point, an unusual feature that could trigger the development of novel photonic devices. Here, the authors combine graphene quantum dots with two graphene layers and observe laser action with ultralow threshold.

    • Golam Haider
    • , Rini Ravindranath
    •  & Yang-Fang Chen

  • Article
    | Open Access

    Adding functional electronic components to graphene nanoribbons requires precise control over their atomic structure. Here, the authors use a bottom-up approach to build a metal-semiconductor junction and a tunnel barrier directly into a single graphene nanoribbon, an exciting development for graphene-based electronic devices

    • P. H. Jacobse
    • , A. Kimouche
    •  & I. Swart

  • Article
    | Open Access

    Auger processes are at the core of electron emission in solid-state physics, however measuring the spectra of electrons emitted solely as a result of Auger transitions remains a challenge. Here, the authors measure the electron energy spectrum in graphene and observe the prominence of Auger-like processes in its valence band.

    • V. A. Chirayath
    • , V. Callewaert
    •  & A. H. Weiss

  • Article
    | Open Access

    Two-dimensional materials are unique to build heterostructures with contrasting spintronic properties. Here, Dankert and Dash utilize a van der Waals heterostructure with graphene and MoS2to demonstrate an all-electrical device for creation, transport and control of the spin current up to room temperature.

    • André Dankert
    •  & Saroj P. Dash

  • Article
    | Open Access

    The nanoscale patterning of two-dimensional materials offers the possibility of novel optoelectronic properties; however, it remains challenging. Here, Camilli et al. show the self-assembly of large arrays of highly-uniform graphene dots imbedded in a BCN matrix, enabling novel devices.

    • Luca Camilli
    • , Jakob H. Jørgensen
    •  & Liv Hornekær

  • Article
    | Open Access

    Graphene nanobubbles can act as enclosures for holding small volumes of substances. Here the authors find a correlation between bubble shape and the encapsulated material providing a potential method for determining the graphene bubble content by its deformation.

    • H. Ghorbanfekr-Kalashami
    • , K. S. Vasu
    •  & M. Neek-Amal

  • Article
    | Open Access

    Graphene shows promise for saturable absorption, a key property for ultrafast lasing, yet graphene saturable absorbers operating in the terahertz region suffer from low absorption modulation. Here, the authors report terahertz saturable absorbers based on inkjet printed graphene with 80% transparency modulation.

    • Vezio Bianchi
    • , Tian Carey
    •  & Miriam S. Vitiello

  • Article
    | Open Access

    Thermal rectification is instrumental to achieving active heat flow control and energy harvesting in nanoscale devices. Here, the authors demonstrate thermal rectification in asymmetric graphene nanostructures, achieving a large rectification factor up to 26%.

    • Haidong Wang
    • , Shiqian Hu
    •  & Jie Chen

  • Article
    | Open Access

    Conventional 3D electron microscopes rely on emission, focusing, deflection, and detection of a focused beam of ballistic electrons to analyse the structure and composition of materials. Here, the authors examine the analogous concept of a 2D electron microscope based on graphene ballistic Dirac electrons.

    • Peter Bøggild
    • , José M. Caridad
    •  & Mads Brandbyge

  • Article
    | Open Access

    Spintronics, graphene, and carbon nanotubes are potential components of next-generation high performance computers. Here, the authors propose and theoretically evaluate a spintronic logic family composed solely of carbon materials with the potential for a 100 × improvement in energy efficiency.

    • Joseph S. Friedman
    • , Anuj Girdhar
    •  & Alan V Sahakian

  • Article
    | Open Access

    Quantitative characterization of supported nanomaterials is challenging, because the nanomaterial signals cannot easily be deconvoluted from those of the substrate. Here, the authors introduce an inventive approach to overcome this problem for electron-based surface analysis techniques.

    • Bo Da
    • , Jiangwei Liu
    •  & Zejun Ding

  • Article
    | Open Access

    Shaping and guiding the flow of ballistic electrons is at the core of electron optics; however in graphene this is hindered by chiral tunneling. Here, the authors experimentally demonstrate an electron collimator based on hBN-encapsulated ballistic graphene, capable of emitting narrow electron beams.

    • Arthur W. Barnard
    • , Alex Hughes
    •  & David Goldhaber-Gordon

  • Article
    | Open Access

    Saturable absorption, a technologically relevant property of graphene, is usually explained with Pauli blocking of optically driven carriers in the strong-excitation regime. Here, Winzeret al. reveal a new saturation regime at low excitations, resulting in a double-bended saturation behaviour.

    • Torben Winzer
    • , Martin Mittendorff
    •  & Andreas Knorr

  • Article
    | Open Access

    Raman spectroscopy is a versatile tool to gain insight into the functionalization of graphene-based materials, yet unequivocal assignment of the vibrational modes associated with covalent binding has so far remained elusive. Here, the authors succeed in an experimental and theoretical identification of this molecular fingerprint.

    • Philipp Vecera
    • , Julio C. Chacón-Torres
    •  & Andreas Hirsch

Browse broader subjects

Browse narrower subjects

Browse Graphene across other nature.com journals