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From the same journal

Inversion Domain Boundary Induced Stacking and Bandstructure Diversity in Bilayer MoSe2

Research output: Contribution to journalArticlepeer-review

Author(s)

  • Jinhua Hong
  • Cong Wang
  • Hongjun Liu
  • Xibiao Ren
  • Jinglei Chen
  • Guanyong Wang
  • Jinfeng Jia
  • Maohai Xie
  • Chuanhong Jin
  • Wei Ji
  • Jun Yuan
  • Ze Zhang

Department/unit(s)

Publication details

JournalNano Letters
DateAccepted/In press - 11 Oct 2017
DateE-pub ahead of print - 18 Oct 2017
DatePublished (current) - 8 Nov 2017
Issue number11
Volume17
Number of pages8
Pages (from-to)6653-6660
Early online date18/10/17
Original languageEnglish

Abstract

Interlayer rotation and stacking were recently demonstrated as effective strategies for tuning physical properties of various two-dimensional materials. The latter strategy was mostly realized in heterostructures with continuously varied stacking orders, which obscure the revelation of the intrinsic role of a certain stacking order in its physical properties. Here, we introduce inversion-domain-boundaries into molecular-beam-epitaxy grown MoSe2 homobilayers, which induce uncommon fractional lattice translations to their surrounding domains, accounting for the observed diversity of large-area and uniform stacking sequences. Low-symmetry stacking orders were observed using scanning transmission electron microscopy and detailed geometries were identified by density functional theory. A linear relation was also revealed between interlayer distance and stacking energy. These stacking sequences yield various energy alignments between the valence states at the Γ and K points of the Brillouin zone, showing stacking-dependent bandgaps and valence band tail states in the measured scanning tunneling spectroscopy. These results may benefit the design of two-dimensional multilayers with manipulable stacking orders.

Bibliographical note

© 2017 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

    Research areas

  • Journal Article

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