Synthesis of white graphene (h-BN) from polymeric precursors and its physical properties
- Synthesis of white graphene (h-BN) from polymeric precursors and its physical properties
- 김명종; 박성찬; 조현진; 이병수
- h-BN; polyeric precursor; white graphene; physical properties
- Issue Date
- APS march meeting
- Large area and high quality white graphene (h-BN, hexagonal boron nitride) has been effectively synthesized from borazine oligomer on Ni catalysts. Synthetic methods for white graphene only included spin coating and subsequent annealing steps, and the thickness of white graphene was controlled with variation of spin coating speed. Characterization methods such as TEM,
SAED, XPS, Raman, and EELS revealed highly crystalline boron nitride structures with stoichiometric B/N ratio close to 1. Catalytic activity of Ni catalyst for the phase conversion reaction through crosslinking and BN crystallization was clearly demonstrated and proper mechanism was
suggested. Considering thermal conductivity and capacitance measured from this white graphene, it has potential applications such as gate dielectric layers for graphene, and thermal management coatings.
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