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.

Latest Research and Reviews

  • Research
    | Open Access

    The lack of efficient, inexpensive catalysts hinders large-scale application of hydrogen evolution reaction (HER). Here, the authors report a MoS2 nanofoam catalyst with co-confined Se in the surface and Co in the inner layer, exhibiting high large-current-density HER activity and durability.

    • Zhilong Zheng
    • , Liang Yu
    • , Meng Gao
    • , Xiya Chen
    • , Wu Zhou
    • , Chao Ma
    • , Lihui Wu
    • , Junfa Zhu
    • , Xiangyu Meng
    • , Jingting Hu
    • , Yunchuan Tu
    • , Sisi Wu
    • , Jun Mao
    • , Zhongqun Tian
    •  & Dehui Deng
  • Research
    | Open Access

    Beyond-Li+-ion batteries are promising energy storage systems but suffer from lack of suitable electrode materials. Here the authors report a new type of zero-strain cathodes for Na+, K+, Zn2+, and Al3+ ion batteries through strain engineering of a 2D multilayered VOPO4-graphene heterostructure.

    • Pan Xiong
    • , Fan Zhang
    • , Xiuyun Zhang
    • , Shijian Wang
    • , Hao Liu
    • , Bing Sun
    • , Jinqiang Zhang
    • , Yi Sun
    • , Renzhi Ma
    • , Yoshio Bando
    • , Cuifeng Zhou
    • , Zongwen Liu
    • , Takayoshi Sasaki
    •  & Guoxiu Wang
  • Research
    | Open Access

    Topological insulators in contact with a superconductor could house unusual physical states such as Majorana fermions. Here, the authors fabricate and report the  electron-transport characteristics of Josephson junctions built using a nanoscale topological insulator, finding evidence for ballistic transport in the surface states of the nanocrystals.

    • Vasily S. Stolyarov
    • , Dmitry S. Yakovlev
    • , Sergei N. Kozlov
    • , Olga V. Skryabina
    • , Dmitry S. Lvov
    • , Amir I. Gumarov
    • , Olga V. Emelyanova
    • , Pavel S. Dzhumaev
    • , Igor V. Shchetinin
    • , Razmik A. Hovhannisyan
    • , Sergey V. Egorov
    • , Andrey M. Kokotin
    • , Walter V. Pogosov
    • , Valery V. Ryazanov
    • , Mikhail Yu. Kupriyanov
    • , Alexander. A. Golubov
    •  & Dimitri Roditchev
  • Research |

    Formation of interlayer excitons with high oscillator strength in a WS2/HfS2 heterostructure enables the realization of high-responsivity room-temperature mid- and long-wavelength infrared photodetectors.

    • Steven Lukman
    • , Lu Ding
    • , Lei Xu
    • , Ye Tao
    • , Anders C. Riis-Jensen
    • , Gang Zhang
    • , Qing Yang Steve Wu
    • , Ming Yang
    • , Sheng Luo
    • , Chuanghan Hsu
    • , Liangzi Yao
    • , Gengchiau Liang
    • , Hsin Lin
    • , Yong-Wei Zhang
    • , Kristian S. Thygesen
    • , Qi Jie Wang
    • , Yuanping Feng
    •  & Jinghua Teng
  • Research |

    A memory device is proposed that uses a dynamical modification of the stacking order of few-layer WTe2 to encode information. The change in stacking modifies both the Berry curvature and the Hall transport, allowing two states to be distinguished.

    • Jun Xiao
    • , Ying Wang
    • , Hua Wang
    • , C. D. Pemmaraju
    • , Siqi Wang
    • , Philipp Muscher
    • , Edbert J. Sie
    • , Clara M. Nyby
    • , Thomas P. Devereaux
    • , Xiaofeng Qian
    • , Xiang Zhang
    •  & Aaron M. Lindenberg

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