First-principles study of intrinsic defect properties in hexagonal BN bilayer and monolayer

Vei Wang, Ning Ma, Hiroshi Mizuseki, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

The formation energies and transition energy levels of intrinsic defects in hexagonal BN (h-BN) bilayer and monolayer have been studied by first-principles calculations based on density functional theory. Our calculated results predict that excellent intrinsic p-type and n-type conductivities are very difficult to be realized in h-BN bilayer and monolayer. This is because of the high formation energies of acceptor-like defects (≥4.6 eV) and the rather deep transition energy levels of donor-like defects (≥2.0 eV). In order to obtain h-BN layers with more efficient p-type and n-type conductivity, extrinsic doping using foreign impurities is necessary.

Original languageEnglish
Pages (from-to)816-820
Number of pages5
JournalSolid State Communications
Volume152
Issue number9
DOIs
Publication statusPublished - 2012 Jan 1

Keywords

  • First-principles calculation
  • Hexagonal boron nitride layer
  • Intrinsic defect

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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