| 초록 |
White graphene (hexagonal boron nitride, h-BN) is an analogue of graphene in which one carbon atom forms sp2 hybridized bonding with three other carbon atoms. Here, a boron atom forms sp2 hybridized bonding with three nitrogen atoms, and a nitrogen atom bonds with three boron atoms in the honeycomb structure of h-BN. Here, we present synthetic methods to produce white graphene (h-BN) using chemical vapor deposition (CVD) on Ni foils. Borazine was utilized as a molecular precursor for high quality h-BN (white graphene) and large areal h-BN sheets were prepared. Ultra-thin (single to few layers) h-BN was synthesized on Ni foil at the optimal ratio between borazine and NH3, and the number of layers was tuned by varying the NH3 partial pressure. The kinetics of white graphene (h-BN) synthesis on Ni and LED application of h-BCN is also discussed. |
