Point defects in two-dimensional hexagonal boron nitride: A perspective

Direct Observation of Defects in Hexagonal Boron Nitride Monolayers

1. Department of Materials Science and Engineering, the University of Tennessee, Knoxville, TN 37996, United States 2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States 3. Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, TN 37996, United States 4. Department of Materials Science and Engi...

Evidence for active atomic defects in monolayer hexagonal boron nitride: a new mechanism of plasticity in two-dimensional materials.

We report the formation and motion of 4|8 (square-octagon) defects in monolayer hexagonal boron nitride (h-BN). The 4|8 defects, involving less-favorable B-B and N-N bonds, are mobile within the monolayer at high sample temperature (∼ 1000 K) under electron beam irradiation. Gliding of one or two atomic rows along the armchair direction is suggested to be the origin of the defect motion. This r...

Hexagonal boron-nitride nanomesh magnets

Oxidation of a two-dimensional hexagonal boron nitride monolayer: a first-principles study.

Two-dimensional (2D) hexagonal boron-nitride oxide (h-BNO) is a structural analogue of graphene oxide. Motivated by recent experimental studies of graphene oxide, we have investigated the chemical oxidation of 2D h-BN sheet and the associated electronic properties of h-BNO. Particular emphasis has been placed on the most favorable site(s) for chemisorption of atomic oxygen, and on the migration...

Carbon-Doped Hexagonal Boron Nitride: Analysis as -Conjugate Molecules Embedded in Two Dimensional Insulator

We analyzed the electronic structures of carbon-doped hexagonal boron nitride, focusing on the comparison with the corresponding π-conjugate hydrocarbon molecules and odd-number substitution by first principle calculation. The band gaps are about the half that of the HOMO-LUMO gaps of corresponding hydrocarbons, except for the cis-butadiene structure in which aromatic hexagonal ring formation i...