Two-dimensional materials articles within Nature

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  • Letter |

    A tunable interlayer twist that evolves naturally during synthesis of van der Waals nanowires made from layered crystals of germanium sulfide could produce new electronic structure and correlation phenomena.

    • Peter Sutter
    • , Shawn Wimer
    •  & Eli Sutter

  • Letter |

    Phosphorene nanoribbons are produced in liquids through the intercalation of black phosphorous crystals with lithium ions, enabling the search for predicted exotic states and applications of these nanoribbons.

    • Mitchell C. Watts
    • , Loren Picco
    •  & Christopher A. Howard

  • Letter |

    Using a double-aberration-corrected transmission electron microscope, intercalation of lithium between two graphene sheets is found to produce a dense, multilayer lithium phase, rather than the expected single layer.

    • Matthias Kühne
    • , Felix Börrnert
    •  & Jurgen H. Smet

  • Perspective |

    The phenomenon of ultralow friction between sliding incommensurate crystal surfaces—structural superlubricity—is examined, and the challenges and opportunities involved in its extension to the macroscale are assessed.

    • Oded Hod
    • , Ernst Meyer
    •  & Michael Urbakh

  • Letter |

    Two- and three-layer WTe2 exhibits spontaneous out-of-plane electric polarization that can be switched electrically at room temperature and is sufficiently robust for use in applications with other two-dimensional materials.

    • Zaiyao Fei
    • , Wenjin Zhao
    •  & David H. Cobden

  • Article |

    Combining an electron microscope pixel-array detector that collects the entire distribution of scattered electrons with full-field ptychography greatly improves image resolution and contrast compared to traditional techniques, even at low beam energies.

    • Yi Jiang
    • , Zhen Chen
    •  & David A. Muller

  • Letter |

    For appropriately aligned layers of different two-dimensional materials, the separation between layers—and hence the interlayer coupling—is very sensitive to pressure, leading to pressure-induced changes in the electronic properties of the heterostructures.

    • Matthew Yankowitz
    • , Jeil Jung
    •  & Cory R. Dean

  • Letter |

    A strong lightwave in a monolayer of tungsten diselenide drives changes in the valley pseudospin, making valley pseudospin an information carrier that is switchable faster than a single light cycle.

    • F. Langer
    • , C. P. Schmid
    •  & R. Huber

  • Letter |

    Molten-salt-assisted chemical vapour deposition is used to synthesize a wide variety of two-dimensional transition-metal chalcogenides.

    • Jiadong Zhou
    • , Junhao Lin
    •  & Zheng Liu

  • Letter |

    Superlattices consisting of alternating monolayer atomic crystals and molecular layers allow access to stable phosphorene monolayers with competitive transistor performance and to bulk monolayer materials with tunable optoelectronic properties.

    • Chen Wang
    • , Qiyuan He
    •  & Xiangfeng Duan

  • Letter |

    An approach is developed for the continuous fabrication of lateral multi-junction heterostructures of transition-metal dichalcogenides, in which the sequential formation of heterojunctions is achieved solely by changing the composition of the reactive gas environment in the presence of water vapour.

    • Prasana K. Sahoo
    • , Shahriar Memaran
    •  & Humberto R. Gutiérrez

  • Letter |

    A device consisting of a metallic island connected to electrodes via tunable semiconductor-based conduction channels is used to explore the evolution of charge quantization in the presence of quantum fluctuations; the measurements reveal a robust scaling of charge quantization as the square root of the residual electron reflection probability across a quantum channel, consistent with theoretical predictions.

    • S. Jezouin
    • , Z. Iftikhar
    •  & F. Pierre

  • Letter |

    Blue energy is a desirable renewable resource, involving the osmotic transport of ions through a membrane from seawater to fresh water; here, nanopores have been created in two-dimensional molybdenum-disulfide membranes, and shown to generate a substantial osmotic power output.

    • Jiandong Feng
    • , Michael Graf
    •  & Aleksandra Radenovic

  • Letter |

    Thin-film solar cells were fabricated using layered two-dimensional perovskites with near-single-crystalline out-of-plane alignment, which facilitates efficient charge transport leading to greatly improved power conversion efficiency with technologically relevant stability to light exposure, humidity and heat stress.

    • Hsinhan Tsai
    • , Wanyi Nie
    •  & Aditya D. Mohite

  • Letter |

    Switching of static friction and adhesion of a liquid drop on a corrugated solid boron nitride surface is linked to the intercalation of hydrogen, which changes the electric field of in-plane dipole rings and thus reduces the adsorption energy.

    • Stijn F. L. Mertens
    • , Adrian Hemmi
    •  & Thomas Greber

  • Letter |

    The ratio of in-plane stiffness to out-of-plane bending stiffness of graphene is shown to be similar to that of a piece of paper, which allows ideas from kirigami (a variation of origami that allows cutting) to be applied to micrometre-scale graphene sheets to build mechanically stretchable yet robust electrodes, springs and hinges.

    • Melina K. Blees
    • , Arthur W. Barnard
    •  & Paul L. McEuen

  • Letter |

    A new chemical vapour deposition method enables transition-metal dichalcogenide (TMD) monolayers to be grown directly on insulating silicon dioxide wafers, demonstrating the possibility of wafer-scale batch fabrication of high-performance devices with TMD monolayers.

    • Kibum Kang
    • , Saien Xie
    •  & Jiwoong Park

  • Letter |

    The structure of the low-dimensional water confined in hydrophobic pores is shown, using electron microscopy and supported by molecular dynamics simulations, to be ‘square ice’, which does not have the conventional tetrahedral hydrogen bonding.

    • G. Algara-Siller
    • , O. Lehtinen
    •  & I. V. Grigorieva

  • Letter |

    A miniature laser is reported that uses two-dimensional tungsten diselenide as the active medium, which is placed on a photonic crystal membrane that acts as the laser cavity; the laser emits visible light, with an ultralow pump threshold.

    • Sanfeng Wu
    • , Sonia Buckley
    •  & Xiaodong Xu

  • Letter |

    Measurements show that monolayers of graphene and hexagonal boron nitride are unexpectedly highly permeable to thermal protons and that their conductivity rapidly increases with temperature, but that no proton transport is detected for few-layer crystals.

    • S. Hu
    • , M. Lozada-Hidalgo
    •  & A. K. Geim

  • Letter |

    Two-dimensional titanium carbide has been produced by etching out aluminium in a lithium fluoride and hydrochloric acid mixture; it is hydrophilic and mouldable like clay and has excellent volumetric capacitance and cyclability, properties that are desirable for portable electronics.

    • Michael Ghidiu
    • , Maria R. Lukatskaya
    •  & Michel W. Barsoum

  • Letter |

    A series of long-lived excitons in a monolayer of tungsten disulphide are found to have strong binding energy and an energy dependence on orbital momentum that significantly deviates from conventional, three-dimensional, behaviour.

    • Ziliang Ye
    • , Ting Cao
    •  & Xiang Zhang

  • Letter |

    Fast optical pulses create a plasma of electrons and holes in a semiconductor in which excitons (pairs of holes and electrons) and combinations of two excitons emerge; now a stable liquid-like droplet of electrons and holes has been detected and called a ‘dropleton’.

    • A. E. Almand-Hunter
    • , H. Li
    •  & S. W. Koch

  • Letter |

    Basal-plane dislocations, identified as fundamental defects in bilayer graphene by transmission electron microscopy and atomistic simulations, reveal striking size effects, most notably a pronounced buckling of the graphene membrane, which drastically alters the strain state and is of key importance for the material’s mechanical and electronic properties.

    • Benjamin Butz
    • , Christian Dolle
    •  & Erdmann Spiecker

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