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Boron nitride nanosheet information


Two-layer BN nanosheet.
Atomic-resolution images of a BN nanosheet prepared by CVD.[1]

Boron nitride nanosheet is a crystalline form of the hexagonal boron nitride (h-BN), which has a thickness of one atom. Similar in geometry as well as physical and thermal properties to its carbon analog graphene, but has very different chemical and electronic properties – contrary to the black and highly conducting graphene, BN nanosheets are electrical insulators with a band gap of ~5.9 eV, and therefore appear white in color.[2]

Uniform monoatomic BN nanosheets can be deposited by catalytic decomposition of borazine at a temperature ~1100 °C in a chemical vapor deposition setup, over substrate areas up to about 10 cm2. Owing to their hexagonal atomic structure, small lattice mismatch with graphene (~2%), and high uniformity they are used as substrates for graphene-based devices.[2][3]

  1. ^ Aldalbahi, Ali; Zhou, Andrew Feng; Feng, Peter (2015). "Variations in Crystalline Structures and Electrical Properties of Single Crystalline Boron Nitride Nanosheets". Scientific Reports. 5: 16703. Bibcode:2015NatSR...516703A. doi:10.1038/srep16703. PMC 4643278. PMID 26563901.
  2. ^ a b Cite error: The named reference nn was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference nn2 was invoked but never defined (see the help page).

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