Two-dimensional materials

Two-dimensional materials are substances with a thickness of a few nanometres or less. Electrons in these materials are free to move in the two-dimensional plane, but their restricted motion in the third direction is governed by quantum mechanics. Prominent examples include quantum wells and graphene.

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Latest Research and Reviews

  • Research
    | Open Access

    A significant challenge of infrared (IR) photodetectors is to funnel light into a small nanoscale active area and efficiently convert it into an electrical signal. Here, the authors couple a plasmonic antenna to hyperbolic phonon-polaritons in hexagonal-BN to highly concentrate mid-IR light into a graphene pn-junction.

    • Sebastián Castilla
    • , Ioannis Vangelidis
    • , Varun-Varma Pusapati
    • , Jordan Goldstein
    • , Marta Autore
    • , Tetiana Slipchenko
    • , Khannan Rajendran
    • , Seyoon Kim
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Luis Martín-Moreno
    • , Dirk Englund
    • , Klaas-Jan Tielrooij
    • , Rainer Hillenbrand
    • , Elefterios Lidorikis
    •  & Frank H. L. Koppens
  • Research
    | Open Access

    Though literature reports improvements in organic electronic device performance, understanding the correlation between static and dynamic device responses remains a challenge. Here, the authors correlate static and dynamic parameters in organic transistors by using the radiofrequency circuit model.

    • Taiki Sawada
    • , Akifumi Yamamura
    • , Mari Sasaki
    • , Kayo Takahira
    • , Toshihiro Okamoto
    • , Shun Watanabe
    •  & Jun Takeya
  • Research
    | Open Access

    Beneficiary defects could be utilized to introduce magnetism into materials that are not intrinsically magnetic. Here, the authors demonstrate long range magnetic order in the air-stable, defective Platinum Diselenide in the ultimate limit of thickness by using proximitized graphene as a probe.

    • Ahmet Avsar
    • , Cheol-Yeon Cheon
    • , Michele Pizzochero
    • , Mukesh Tripathi
    • , Alberto Ciarrocchi
    • , Oleg V. Yazyev
    •  & Andras Kis
  • Research
    | Open Access

    Exciton dynamics can be strongly affected by lattice vibrations through electron-phonon (e-ph) coupling. Here, the authors show the presence of strong e-ph coupling in bilayer CrI3 and observe a Raman feature with periodic broad modes up to the 8th order, attributed to the polaronic character of excitons.

    • Wencan Jin
    • , Hyun Ho Kim
    • , Zhipeng Ye
    • , Gaihua Ye
    • , Laura Rojas
    • , Xiangpeng Luo
    • , Bowen Yang
    • , Fangzhou Yin
    • , Jason Shih An Horng
    • , Shangjie Tian
    • , Yang Fu
    • , Gongjun Xu
    • , Hui Deng
    • , Hechang Lei
    • , Adam W. Tsen
    • , Kai Sun
    • , Rui He
    •  & Liuyan Zhao
  • Research
    | Open Access

    Edge conductance plays a central role in the electronic transport properties of graphitic interfaces. Here, the authors present a method to distinguish edge from bulk transport in twisted graphitic junctions and show that their relative contribution depends on the stacking configuration and the potential drop across the interface.

    • Debopriya Dutta
    • , Annabelle Oz
    • , Oded Hod
    •  & Elad Koren

News and Comment

  • News and Views |

    Correlated real-space imaging and optical measurements of twisted MoSe2/WSe2 bilayers reveal strain-induced modulations of the moiré potential landscape, tuning arrays of 0D traps into 1D stripes and leading to substantial changes in the optical response of the heterostructures.

    • Long Zhang
    •  & Hui Deng
    Nature Materials 19, 1044-1045
  • Editorial |

    Two-dimensional materials could first find widespread commercial application in analogue electronics, rather than as a replacement for silicon in digital devices.

  • News and Views |

    The two-dimensional semiconductor Bi2O2Se can be oxidized to create an atomically thin layer of Bi2SeO5 that can be used as the insulator in scaled field-effect transistors.

    • Yury Yu. Illarionov
    • , Theresia Knobloch
    •  & Tibor Grasser
    Nature Electronics 3, 442-443
  • News and Views |

    Monolayers of boron nitride can be used to build high-performance radio-frequency switches that can operate at the frequencies required for 5G and the communication systems beyond it.

    • Frank Schwierz
    Nature Electronics 3, 444-445