Graphene articles within Nature Communications

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  • Article
    | Open Access

    Placement of charge centres with atomic precision on graphene allows exploration of new types of confinement of charge carriers. Here, the authors fabricate atomically precise arrays of point charges on graphene and observe the onset of a frustrated supercritical regime.

    • Jiong Lu
    • , Hsin-Zon Tsai
    •  & Michael F. Crommie

  • Article
    | Open Access

    Graphene oxide (GO) dispersions may be used as starting materials for graphene-based architectures. Here, a malleable and versatile dough state of GO is discovered, completing the GO–water continuum, which can be diluted or converted to glassy GO or graphene solids without long-range stacking order with enhanced mechanical and electrochemical properties

    • Che-Ning Yeh
    • , Haiyue Huang
    •  & Jiaxing Huang

  • Article
    | Open Access

    The mechanism of lithium storage in graphenic carbon remains a fundamental question to be addressed. Here the authors employ suitable bilayer graphene foam to investigate various physiochemical phenomena of lithium intercalation and propose a storage model.

    • Kemeng Ji
    • , Jiuhui Han
    •  & Yutaka Oyama

  • Article
    | Open Access

    The possibility to combine planar and van der Waals heterostructures holds great promise for nanoscale electronic devices. Here, the authors report an innovative method to synthesise embedded graphene quantum dots within hexagonal boron nitride matrix for vertical tunnelling single electron transistor applications.

    • Gwangwoo Kim
    • , Sung-Soo Kim
    •  & Hyeon Suk Shin

  • Article
    | Open Access

    π-magnetism in graphene systems has been predicted but remains an experimental challenge. Here the authors report the discovery of unpaired electron spins localized in certain sites of graphene nanoribbons, and the measurement of their coupling by inducing singlet-triplet excitations with a scanning tunneling microscope.

    • Jingcheng Li
    • , Sofia Sanz
    •  & Jose Ignacio Pascual

  • Article
    | Open Access

    Atomically-clean interfaces are required in heterostructures. Here, authors report a method for fast and parallel removal of contaminants from fully-formed heterostructures, including sample intentionally exposed to polymers and solvent, achieving room temperature mobility over 180,000 cm2/Vs for graphene.

    • D. G. Purdie
    • , N. M. Pugno
    •  & A. Lombardo

  • Article
    | Open Access

    The photoresponse of graphene-based photodetectors is dominated by photovoltaic and photothermoelectric effects. Here, the authors leverage strongly localised plasmonic heating of graphene carriers to detect a second photothermoelectric effect occurring across a homogeneous channel in the presence of an electronic temperature gradient.

    • Viktoryia Shautsova
    • , Themistoklis Sidiropoulos
    •  & Rupert F. Oulton

  • Article
    | Open Access

    Silicon-based contaminants are ubiquitous in natural graphite, and they are thus expected to be present in exfoliated graphene. Here, the authors show that such impurities play a non-negligible role in graphene-based devices, and use high-purity parent graphite to boost the performance of graphene sensors and supercapacitor microelectrodes.

    • Rouhollah Jalili
    • , Dorna Esrafilzadeh
    •  & Gordon G. Wallace

  • Article
    | Open Access

    Low-dimensional materials show promise for applications in imaging, spectroscopy and ultra-broadband communications. Here, the authors report an effect of Brewster angle control at graphene-quartz interface for applications in terahertz modulation over a broadband range from 0.5 to 1.6 THz.

    • Zefeng Chen
    • , Xuequan Chen
    •  & Jian-Bin Xu

  • Article
    | Open Access

    The electro-optical response of suspended graphene membranes measured by change in wavelength-dependent reflectance can enable interferometric modulation display (IMOD) technology. Here, the authors report suspended double layer graphene based IMOD drums with 2500 pixels per inch.

    • Santiago J. Cartamil-Bueno
    • , Dejan Davidovikj
    •  & Samer Houri

  • Article
    | Open Access

    Nanographenes with zig-zag peripheries are expected to have unique electronic properties, but their application in organic electronics has been curbed by their difficult synthesis. Here, the authors develop a facile route to zig-zag nanographenes based on a key dehydrative π-extension reaction.

    • Dominik Lungerich
    • , Olena Papaianina
    •  & Konstantin Amsharov

  • Article
    | Open Access

    A transmon qubit insensitive to magnetic fields is a crucial element in topological quantum computing. Here, Kroll et al. create graphene transmons by integrating monolayer graphene Josephson junctions into microwave frequency superconducting circuits, allowing them to operate in a parallel magnetic field of 1 T.

    • J. G. Kroll
    • , W. Uilhoorn
    •  & L. P. Kouwenhoven

  • Article
    | Open Access

    Electronic highways were realized by means of epitaxially grown graphene nanoribbons on SiC substrates. Here, the authors use spatially-resolved two-point probe and conductive AFM measurements, supplemented by tight-binding calculations, to image the one-dimensional ballistic transport channels.

    • Johannes Aprojanz
    • , Stephen R. Power
    •  & Christoph Tegenkamp

  • Article
    | Open Access

    Experimental determination of the contact angle of a two-dimensional film is crucial to understand its wettability characteristics. Here, the authors use the captive bubble method to estimate a contact angle value of 42° ± 3° for a monolayer graphene film.

    • Anna V. Prydatko
    • , Liubov A. Belyaeva
    •  & Grégory F. Schneider

  • Article
    | Open Access

    Encapsulated graphene Josephson junctions are promising for microwave quantum circuits but so far haven’t been explored. Here, Schmidt and Jenkins et al. observe a gate-tunable Josephson inductance in a microwave circuit based on a ballistic graphene Josephson junction embedded in a superconducting cavity.

    • Felix E. Schmidt
    • , Mark D. Jenkins
    •  & Gary A. Steele

  • Article
    | Open Access

    Though monolayer graphene has the potential to be used in near-field thermal management applications, no experimental verification has been provided to date. Here, the authors directly measure plasmon-enhanced near-field heat transfer between graphene sheets on intrinsic silicon substrates.

    • Jiang Yang
    • , Wei Du
    •  & Yungui Ma

  • Article
    | Open Access

    Fabrication methods to pattern thin materials are a critical tool to build molecular scale devices. Here the authors report a selective etching method using XeF2 gas to pattern graphene based heterostructures with multiple active layers and achieve 1D contacts with low contact resistivity of 80 Ω·µm

    • Jangyup Son
    • , Junyoung Kwon
    •  & Arend M. van der Zande

  • Article
    | Open Access

    Imaging chemical bonding states in defective graphene is important to determine its functional properties. Here, the authors report triangular and rectangular atomic electric fields in monolayer graphene induced by silicon as imaged by differential phase contrast STEM.

    • Ryo Ishikawa
    • , Scott D. Findlay
    •  & Naoya Shibata

  • Article
    | Open Access

    Chemically functionalized graphene oxide-based pn junction diodes have potential for future electronic device applications. Here, the authors report an all carbon pn diode with graphene oxide and carbon nanotubes electrodes showing excellent current rectification and efficient logic gates.

    • Xiaojing Feng
    • , Xing Zhao
    •  & Yong Yan

  • Article
    | Open Access

    All materials subjected to mechanical deformation form low energy interfaces known as twin boundaries. Here, the authors investigate a variety of structural features that form upon bending atomically thin 2D-crystals, and predict distinct classes of post deformation microstructure based on their atomic arrangement, bend angle and flake thickness.

    • A. P. Rooney
    • , Z. Li
    •  & S. J. Haigh

  • Article
    | Open Access

    The optical properties of nanographenes can be engineered by designing their size, shape, and edges. Here, the authors show that graphene quantum dots are single photon emitters at room temperature, and their emission wavelength can be controlled by edge functionalization.

    • Shen Zhao
    • , Julien Lavie
    •  & Jean-Sébastien Lauret

  • Article
    | Open Access

    Circular photocurrents emerge in atomically thin transition metal dichalcogenides as a result of circular photogalvanic and photon drag effects. Here, the authors identify two different circular photocurrent contributions in monolater MoSe2, dominant at different voltages and with different dependence on illumination wavelength and incidence angles.

    • Jorge Quereda
    • , Talieh S. Ghiasi
    •  & Caspar H. van der Wal

  • Article
    | Open Access

    In situ studies under working conditions are important in atomic-level elucidation, design, and optimization of industrially relevant catalysts. Here, the authors report an in situ study of an Ag ethylene photo-epoxidation catalyst using surface enhanced Raman scattering, which uncovers an unconventional mechanism.

    • Xueqiang Zhang
    • , Gayatri Kumari
    •  & Prashant K. Jain

  • Article
    | Open Access

    Mapping the distribution of functional groups on 2D materials with high resolution remains challenging. Here, the authors combine tip-enhanced Raman spectroscopy and Kelvin probe force microscopy to simultaneously examine the topography, chemical composition and electronic nature of graphene oxide surfaces with nanoscale spatial resolution.

    • Weitao Su
    • , Naresh Kumar
    •  & Marc Chaigneau

  • Article
    | Open Access

    Owing to its long spin diffusion length, graphene shows promise for spintronics applications, especially when encapsulated within hexagonal boron nitride. Here, the authors demonstrate gate-tunable spin transport in encapsulated graphene-based spin valves with one-dimensional ferromagnetic edge contacts via magnetic proximity effect.

    • Jinsong Xu
    • , Simranjeet Singh
    •  & Roland K. Kawakami

  • Article
    | Open Access

    Understanding of ordered phases of interacting electrons in 2D systems is a fundamental many-body physics problem. Here, the authors report unconventional fractional quantum Hall phases in graphene Corbino devices originating from residual interactions of composite fermions in partially filled higher Landau levels. They also demonstrate the exceptional strength of the Coulomb interactions in suspended graphene by reaching the field-induced Wigner crystal state.

    • Manohar Kumar
    • , Antti Laitinen
    •  & Pertti Hakonen

  • Article
    | Open Access

    Graphene enables extraordinary nonlinear-optical refraction, far exceeding predictions based on conventional nonlinear-susceptibility theory. Here, Vermeulen et al. show that rather than the nonlinear susceptibility, a complex saturable refraction process is central to graphene’s unusual behavior.

    • Nathalie Vermeulen
    • , David Castelló-Lurbe
    •  & Jürgen Van Erps

  • Article
    | Open Access

    Graphene shows great promise for gas separation applications, but obtaining large membranes that are free of cracks and tears remains highly challenging. Here, the authors realize monolayer, crack-free, millimeter-scale graphene membranes that exhibit selective gas permeation solely thanks to their intrinsic defects

    • Shiqi Huang
    • , Mostapha Dakhchoune
    •  & Kumar Varoon Agrawal

  • Article
    | Open Access

    Manipulating the properties of artificial graphene systems without changing the lattice has proven difficult. Here, Mann et al. theoretically show that changing the photonic environment alone can modify the fundamental properties of emergent massless Dirac polaritons in honeycomb metasurfaces.

    • Charlie-Ray Mann
    • , Thomas J. Sturges
    •  & Eros Mariani

  • Article
    | Open Access

    Two quantum critical behaviors appear in a two dimensional electron gas (2DEG) but its origin remains to be attested. Here, Sun et al. construct superconducting puddles-2DEG hybrid system by depositing tin nano-islands array on monolayer graphene where the two quantum critical behaviors are reproduced, suggesting the formation of inhomogeneous superconducting 2DEG.

    • Yinbo Sun
    • , Hong Xiao
    •  & Xi Wang

  • Article
    | Open Access

    Chemical doping is a viable strategy to tune the electrical properties of pristine graphene, but suffers from stability issues. Here, the authors develop a macromolecular chemical doping approach that makes use of polymeric acid and provides high stability.

    • Sung-Joo Kwon
    • , Tae-Hee Han
    •  & Tae-Woo Lee

  • Article
    | Open Access

    Nanographenes in donor-acceptor π-systems generally serve as electron-donating moieties but the reversed structures are hardly reported. Here, the authors present a facile synthetic protocol towards reversed donor-acceptor nanographenes by amination and demonstrate fine property tuning by varying the donating ability of the aniline groups.

    • Yu-Min Liu
    • , Hao Hou
    •  & Klaus Müllen

  • Article
    | Open Access

    The Josephson effect is at the core of superconducting devices. Here, the authors demonstrate control of spatial confinement, amplitude, and density profile of supercurrents in one-dimensional nanoscale constrictions within graphene bilayers.

    • Rainer Kraft
    • , Jens Mohrmann
    •  & Romain Danneau

  • Article
    | Open Access

    In two-dimensional semiconductors excitons are strongly bound, suppressing the creation of free carriers. Here, the authors investigate the main exciton dissociation pathway in p-n junctions of monolayer WSe2 by means of time and spectrally resolved photocurrent measurements.

    • Mathieu Massicotte
    • , Fabien Vialla
    •  & Frank H. L. Koppens

  • Article
    | Open Access

    Graphene oxide membranes show great potential for water filtering, but improving their performance and stability remains difficult. Here, the authors use theanine amino acid and tannic acid to reduce and cross-link graphene oxide membranes with remarkably high permeability and stability in aqueous solution.

    • Khalid Hussain Thebo
    • , Xitang Qian
    •  & Wencai Ren

  • Article
    | Open Access

    Water between two parallel solid plates can form mono-, bi-, or more layers. Here, the authors investigate the behavior of water confined between graphene sheets and find that the phase separation to mono- and bi-layer creates 2D droplets by bending the sheets which form ripples.

    • Hiroaki Yoshida
    • , Vojtěch Kaiser
    •  & Lydéric Bocquet

  • Article
    | Open Access

    Charge density reorganization at the interface between 2D materials may lead to electric field screening. Here, the authors investigate the dielectric screening properties of MoS2/graphene van der Waals heterostructures and identify an asymmetric electric response under different directions of the applied electric field.

    • Lu Hua Li
    • , Tian Tian
    •  & Elton J. G. Santos

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