Synthesis of One Monolayer of Hexagonal Boron Nitride on Ni(111) from B-Trichloroborazine (ClBNH)₃

Abstract

Single-layer h -BN films may be grown on Ni(111) by using B-trichloroborazine (ClBNH) 3 . Scanning tunneling microscopy shows perfect monolayers with a very low density of defects. This way of producing stoichiometric, ultimately thin h -BN layers is an alternate route to the use of borazine (HBNH) 3 . The h -BN growth patterns indicate a reaction mechanism that proceeds via six-membered ring opening of these cyclic BN molecules. A set of density functional calculations for B-trichloroborazine, borazine, and N-trichloroborazine yields bond energies and bond lengths for these molecules.