Graphene articles within Nature Communications

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  • Article
    | Open Access

    Preparing triangulene-based high spin structures is of interest for molecular spintronics. Here, the authors generate high spin triangulene trimers on Au(111) via a surface-assisted dehydration reaction.

    • Suqin Cheng
    • , Zhijie Xue
    •  & Ping Yu

  • Article
    | Open Access

    Experiments on twisted bilayer graphene point to various interaction-induced phases, including the non-Fermi liquid, but its unambiguous assignment remains challenging. Here, using simultaneous transport and thermoelectric power measurements, the authors identify non-Fermi liquid signatures at low twist angle.

    • Bhaskar Ghawri
    • , Phanibhusan S. Mahapatra
    •  & Arindam Ghosh

  • Comment
    | Open Access

    The industrial application of two-dimensional (2D) materials strongly depends on the large-scale manufacturing of high-quality 2D films and powders. Here, the authors analyze three state-of-the art mass production techniques, discussing the recent progress and remaining challenges for future improvements.

    • Soo Ho Choi
    • , Seok Joon Yun
    •  & Young Hee Lee

  • Article
    | Open Access

    Graphene plasmons hold potential for infrared optoelectronic devices, but the interaction with the substrate often degrades their quality. Here, the authors report the characterization of plasmons in suspended graphene with tunable suspension height, showing enhanced quality factors and propagation lengths at room temperature.

    • Hai Hu
    • , Renwen Yu
    •  & Qing Dai

  • Article
    | Open Access

    Functionalization of aerogel fibers, characterized by high porosity and low thermal conductivity, to obtain multifunctional materials is highly desirable. Here the authors report hygroscopic holey graphene aerogel fibers hosting LiCl salt, enabling moisture capture, heat allocation, and microwave absorption performance.

    • Yinglai Hou
    • , Zhizhi Sheng
    •  & Xuetong Zhang

  • Article
    | Open Access

    Graphene oxide nanofiltration membranes with tunable interlayer spacing tend to be either unstable in water or have low water permeation rates. Here the authors report a general synthetic method to achieve ultrafine metal oxide - reduced graphene oxide nanocomposites for dye filtration, achieving high water permeability and selectivity.

    • Wanyu Zhang
    • , Hai Xu
    •  & Donghui Long

  • Article
    | Open Access

    Recently graphene has emerged as a new platform for the study of quantum Hall states. Here, by means of noise measurements, the authors report evidence for the existence of the upstream mode and its ballistic nature in the hole-conjugate fractional quantum Hall state in a bilayer graphene device.

    • Ravi Kumar
    • , Saurabh Kumar Srivastav
    •  & Anindya Das

  • Article
    | Open Access

    Local variations of twist angle and strain in twisted bilayer graphene (TBG) can produce relevant changes in the electronic properties of the system. Here, high-resolution low energy electron microscopy is used to characterize the spatial and temporal deformations of moiré patterns in TBG at high temperatures, showing the stability of these structures up to 600 ∘C.

    • Tobias A. de Jong
    • , Tjerk Benschop
    •  & Sense Jan van der Molen

  • Article
    | Open Access

    The alignment of three 2D nanosheets leads to the formation of super-moiré atomic lattices, which can influence the electronic properties of van der Waals structures. Here, the authors report evidence of possible correlated insulating states in doubly-aligned hBN/graphene/hBN heterostructures, in a weak-interaction regime.

    • Xingdan Sun
    • , Shihao Zhang
    •  & Zhidong Zhang

  • Article
    | Open Access

    Two-dimensional membranes with angstrom-sized pores are predicted to combine high permeability with exceptional selectivity, but experimental demonstration has been challenging. Here the authors realize angstrom-sized pores in monolayer graphene and demonstrate gas transport with activation barriers increasing quadratically with the molecular kinetic diameter.

    • P. Z. Sun
    • , M. Yagmurcukardes
    •  & A. K. Geim

  • Article
    | Open Access

    Ultrathin transition metal dichalcogenides (TMDs) hold promise for next-generation lightweight photovoltaics. Here, the authors demonstrate the first flexible high power-per-weight TMD solar cells with notably improved power conversion efficiency.

    • Koosha Nassiri Nazif
    • , Alwin Daus
    •  & Krishna C. Saraswat

  • Article
    | Open Access

    Here, the authors introduce a biosensing platform with multi-length-scale electrode architecture consisting of 3D printed silver micropillars decorated with graphene flakes. They demonstrate that this breaks a barrier to the biomolecule limit-of-detection, enabling detection down to femtomolar level.

    • Md. Azahar Ali
    • , Chunshan Hu
    •  & Rahul Panat

  • Article
    | Open Access

    The integration of 2D materials on photonic devices provides advanced functionalities in sensing applications. The authors demonstrate a graphene functionalized microcomb sensor by exploiting spectrally trapped Stokes solitons. They obtain both multispecies gas identification and individual molecule sensitivity.

    • Teng Tan
    • , Zhongye Yuan
    •  & Baicheng Yao

  • Article
    | Open Access

    Magneto-oscillations have revealed many interesting phenomena in graphene and quantum Hall systems, but they are typically measured at low currents and in equilibrium. Here, the authors report several non-equilibrium quantum effects observed in magneto-oscillations in graphene at high currents.

    • M. T. Greenaway
    • , P. Kumaravadivel
    •  & L. Eaves

  • Article
    | Open Access

    Ferroelectric ordering of water has been at the heart of intense debates due to its importance in enhancing our understanding of the condensed matter. Here, the authors observe ferroelectric properties of water ice in a two dimensional phase under confinement between two graphene layers.

    • Hao-Ting Chin
    • , Jiri Klimes
    •  & Ya-Ping Hsieh

  • Article
    | Open Access

    Single photon emitters (SPEs) in 2D semiconductors can be deterministically positioned using localized strain induced by underlying nanostructures. Here, the authors show SPE coupling in WSe2 to GaP dielectric nanoantennas, substantially increasing quantum efficiency and photoluminescence brightness.

    • Luca Sortino
    • , Panaiot G. Zotev
    •  & Alexander I. Tartakovskii

  • Article
    | Open Access

    Photophysical and photochemical features of graphene quantum dots (GQDs) strongly depend on their chemical nature that remains challenging to be controlled in a systematic and uniform manner. Here the authors report an efficient solvent-catalyst-aided growth of chemically tailored N-doped GQDs.

    • Byung Joon Moon
    • , Sang Jin Kim
    •  & Sukang Bae

  • Article
    | Open Access

    The mechanisms responsible for the strongly correlated insulating and superconducting phases in twisted bilayer graphene are still debated. The authors provide a theory for phonon-dominated transport that explains several experimental observations, and contrast it with the Planckian dissipation mechanism.

    • Gargee Sharma
    • , Indra Yudhistira
    •  & Shaffique Adam

  • Article
    | Open Access

    Graphene nanoribbons are potential systems for engineering topological phases of matter, but the pre-required gapped phases are difficult to find. Here, the authors show that chiral graphene nanoribbons undergo a transition from metallic to topological insulators, and then to trivial band insulators as they are narrowed down to nanometer widths.

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

  • Article
    | Open Access

    Magic-angle twisted bilayer graphene exhibits a quantum anomalous Hall effect at 3/4 filling; however, its mechanism is debated. Here, the authors show that such a phase can be realized in a lattice model of twisted bilayer graphene in the strong coupling limit, and interpret the results in terms of a topological Mott insulator phase.

    • Bin-Bin Chen
    • , Yuan Da Liao
    •  & Zi Yang Meng

  • Article
    | Open Access

    Understanding the interaction between spin and valley degrees of freedom in graphene-based quantum dots underpins their applications in electronics and quantum information. Here, the authors study the low-energy spectrum and resolve the spin-valley coupling in single-electron quantum dots in bilayer graphene.

    • L. Banszerus
    • , S. Möller
    •  & C. Stampfer

  • Article
    | Open Access

    The effect of strain-induced pseudo-magnetic fields on the optical properties of graphene has not been experimentally explored yet. Here, pseudo-magnetic fields reaching values of 100 T are shown to increase by more than an order of magnitude the relaxation lifetime of hot carriers in periodically strained graphene.

    • Dong-Ho Kang
    • , Hao Sun
    •  & Donguk Nam

  • Article
    | Open Access

    Here, the authors investigate the long-range interaction and coalescence mechanism of water and ethanol nanopockets encapsulated in twisted bilayer graphene, showing the complete recovery of moiré patterns after the motion of the contaminants.

    • Yuan Hou
    • , Zhaohe Dai
    •  & Zhong Zhang

  • Article
    | Open Access

    Graphene-based photodetectors have many advantages for applications. Here, the authors demonstrate a high-speed optical coherent receiver for optical communications based on graphene-on-plasmonic slot waveguide photodetectors.

    • Yilun Wang
    • , Xiang Li
    •  & Xinliang Zhang

  • Article
    | Open Access

    Graphene is the archetype for realizing two-dimensional topological phases of matter. Here, the authors introduce a new topological classification connected to polarization transport, where the topological number is revealed in the spatiotemporal dispersion of the susceptibility tensor.

    • Todd Van Mechelen
    • , Wenbo Sun
    •  & Zubin Jacob

  • Article
    | Open Access

    The properties of graphene/polymer composites are usually limited by the use of discontinuous graphene flakes. Here, the authors report a fabrication method to realise continuous cm-scale graphene/polymer nanolaminates with enhanced electromagnetic interference shielding effectiveness, conductivity and mechanical properties.

    • Christos Pavlou
    • , Maria Giovanna Pastore Carbone
    •  & Costas Galiotis

  • Article
    | Open Access

    The integration of nano-molecules into microelectronic circuitry is challenging. Here, the authors provide a scalable method for contacting a self-assembled monolayer of nanoparticles with a single layer of graphene that produces single-electron effects, in the form of a Coulomb staircase, with a yield of at least 70%.

    • Joel M. Fruhman
    • , Hippolyte P.A.G. Astier
    •  & Christopher J. B. Ford

  • Article
    | Open Access

    It was suggested that the breakdown of the quantum Hall effect in graphene originates from the coupling between counter propagating edge modes. Here, by using scanning gate microscopy, the authors propose a microscopic mechanism of this coupling due to antidots present at graphene edges.

    • N. Moreau
    • , B. Brun
    •  & B. Hackens

  • Review Article
    | Open Access

    This review presents an overview of scenarios where van der Waals (vdW) materials provide unique advantages for nanophotonic biosensing applications. The authors discuss basic sensing principles based on vdW materials, advantages of the reduced dimensionality as well as technological challenges.

    • Sang-Hyun Oh
    • , Hatice Altug
    •  & Michael S. Strano

  • Article
    | Open Access

    Optical receivers based on graphene still suffer from low responsivity. Here, the authors integrate a photo-thermoelectric graphene photodetector with a Si micro-ring resonator, and obtain a voltage responsivity ~ 90 V/W and a reduction of energy-per-bit consumption, enabling performance on par with mature semiconductor technology.

    • S. Schuler
    • , J. E. Muench
    •  & T. Mueller

  • Article
    | Open Access

    Knowledge of the quantum response of materials is essential for designing light–matter interactions at the nanoscale. Here, the authors report a theory for understanding the impact of metallic quantum response on acoustic graphene plasmons and how such response could be inferred from measurements.

    • P. A. D. Gonçalves
    • , Thomas Christensen
    •  & N. Asger Mortensen

  • Article
    | Open Access

    Flow through nanometer scale channels facilitates an unmasked study of water-surface molecular interactions. Here, Keerthi et al. show with conduits made from graphite and hexagonal boron nitride that strong hydrophobicity does not rule out enhanced stickiness and friction.

    • Ashok Keerthi
    • , Solleti Goutham
    •  & Boya Radha

  • Article
    | Open Access

    The dynamics of water molecules at interfaces controls natural and artificial processes, but experimental investigations have been challenging. Here the authors investigate water molecules on a graphene surface using helium spin-echo spectroscopy, and reveal a regime where freely mobile molecules undergo strong repulsive mutual interactions which inhibit ice nucleation.

    • Anton Tamtögl
    • , Emanuel Bahn
    •  & William Allison

  • Article
    | Open Access

    The broken-symmetry edge states that are the hallmark of the quantum Hall effect in graphene have eluded spatial measurements. Here, the authors spatially map the quantum Hall broken-symmetry edge states using atomic force microscopy and show a gapped ground state proceeding from the bulk through to the quantum Hall edge boundary.

    • Sungmin Kim
    • , Johannes Schwenk
    •  & Joseph A. Stroscio

  • Article
    | Open Access

    Nanographenes are emerging as a distinctive class of functional materials for electronic and optical devices. Here, the authors develop a facile strategy to recompose helicenes into a variety of chiral nanographenes through an oxidative cyclo-rearrangement reaction.

    • Chengshuo Shen
    • , Guoli Zhang
    •  & Huibin Qiu

  • Article
    | Open Access

    The development of a quantitative and predictive theory of quantum light-matter interactions in ultrathin materials is both a conceptual and computational challenge. Here, the authors develop such a framework by combining density functional theory with macroscopic quantum electrodynamics, and use it to quantify the Purcell effect in van der Waals heterostructures.

    • Mark Kamper Svendsen
    • , Yaniv Kurman
    •  & Kristian S. Thygesen

  • Article
    | Open Access

    Here, the authors report optoelectronic mixing up to 67 GHz using high-frequency back-gated graphene field effect transistors (GFETs). These devices mix an electrical signal injected into the GFET gate and a modulated optical signal onto a single layer graphene channel.

    • A. Montanaro
    • , W. Wei
    •  & E. Pallecchi

  • Article
    | Open Access

    Twisted double bilayer graphene hosts flat bands that can be tuned with an electric field. Here, by using gate-tuned scanning tunneling spectroscopy, the authors demonstrate the tunability of the flat band and reveal spectral signatures of correlated electron states and the topological nature of the flat band.

    • Xiaomeng Liu
    • , Cheng-Li Chiu
    •  & Ali Yazdani

  • Article
    | Open Access

    Twisted double bilayer graphene is a novel van der Waals system that hosts an electric-field-tunable correlated state at half-filling. Here the authors reveal the delocalized nature of this state by scanning tunnelling microscopy and spectroscopy, suggesting an underlying mechanism of symmetry breaking driven by non-local exchange.

    • Canxun Zhang
    • , Tiancong Zhu
    •  & Michael F. Crommie

  • Article
    | Open Access

    Transparent photodetectors based on graphene stacked vertically along the optical axis have shown promising potential for light field reconstruction. Here, the authors develop transparent photodetector arrays and implement a neural network for real-time 3D optical imaging and object tracking.

    • Dehui Zhang
    • , Zhen Xu
    •  & Theodore B. Norris

  • Article
    | Open Access

    Li-ion battery electrodes contain inactive materials, such as conducting agents and polymeric binders, which limit the energy density. Here, the authors demonstrate highly dense Ni-rich cathodes with improved volumetric capacities by coating graphene and minimizing the inactive components.

    • Chang Won Park
    • , Jung-Hun Lee
    •  & Young-Jun Kim

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