Van der Waals Force Driven Ultrahigh-Density Piezoelectric Nano-Generators Arrays

ORAL

Abstract

The elegance of Van der Waals heterostructure emerges as the possibilities to design its function on-demand when choosing different functional materials. When two layers materials are taken to form moire lattice, the Van der Waals force between the two layers could stimulate even more fascinating features forming spontaneously. Here we show, when graphene and single layer BN (SLBN) are minimally twisted superposed, the interlayer interactions propel the two lattices rearrangement and induces a spatial modulated strain configuration. The moire pattern reconciled strain superlattice in single layer BN, companied by its inversion symmetry broken, induces an oscillating charge polarization as revealed by the scanning tunneling microscope. This moire pattern driven charge polarization in SLBN allows us to get a highly ordered nano-generators array with a giant density.

*DOE-FG02-99ER45742 , NSF-DMR 1708158

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Presenters

  • Yuhang Jiang

    • University of Chinese Academy of Sciences
    • Department of Physics and Astronomy, University of Chinese Academy of Sciences, CM5J+7X, Huaibeizhen, Huairou, Beijing, China

Authors

  • Yuhang Jiang

    • University of Chinese Academy of Sciences
    • Department of Physics and Astronomy, University of Chinese Academy of Sciences, CM5J+7X, Huaibeizhen, Huairou, Beijing, China

  • Jinhai Mao

    • University of Chinese Academy of Sciences
    • Department of Physics and Astronomy, University of Chinese Academy of Sciences, CM5J+7X, Huaibeizhen, Huairou, Beijing, China

  • Colin Robert Woods

    • School of Physics &Astronomy, University of Manchester

  • Slavisa Milovanovic

    • Univ of Antwerp
    • Departement Fysica, University of Antwerp

  • Francois M Peeters

    • Univ of Antwerp
    • Department of Physics, University of Antwerp
    • Departement Fysica, University of Antwerp

  • Konstantin S Novoselov

    • Univ of Manchester
    • School of Physics &Astronomy, University of Manchester

  • Eva Andrei

    • Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08855 USA
    • Rutgers Univeristy
    • Department of physics and Astronomy, Rutgers University