Correlation between the Growth Rate of White Graphene (h-BN) and Grain Orientation of Polycrystalline Nickel Foil

Title
Correlation between the Growth Rate of White Graphene (h-BN) and Grain Orientation of Polycrystalline Nickel Foil
Authors
조현진박성찬펠리시타박진형강상욱김명종
Keywords
h-BN; white graphene; growth rate; Ni foil; grain orientation
Issue Date
2014-02
Publisher
나노튜브 연구회
Abstract
Morphology of the surface and orientation of the grain of the metal catalysts have been deemed the important factors for the growth of white graphene (h-BN) using chemical vapor deposition. We report correlation between white graphene (h-BN) growth and grain orientation of polycrystalline nickel foil. The surface of nickel foil was cleaned and polished by electrochemical polishing and subsequent atmospheric pressure hydrogen annealing to suppress the effect from the surface morphology. The atmospheric annealing reduced nucleation site of nickel foil such that white graphene (h-BN) with large crystal size started growing from the grain boundary and few other nucleation sites in nickel foil. Higher growth rate was observed from the nickel grains that has (100) orientation due to higher surface energy.
URI
http://pubs.kist.re.kr/handle/201004/47409
Appears in Collections:
KIST Publication > Conference Paper
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