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Lee, Zonghoon
Atomic-Scale Electron Microscopy (ASEM) Lab
Research Interests
  • Advanced Transmission Electron Microscopy (TEM/STEM), in Situ TEM, graphene, 2D materials, low-dimensional crystals, nanostructured materials

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Catalytic Conversion of Hexagonal Boron Nitride to Graphene for In-Plane Heterostructures

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Title
Catalytic Conversion of Hexagonal Boron Nitride to Graphene for In-Plane Heterostructures
Author
Kim, GwangwooLim, HyunseobMa, Kyung YeolJang, A-RangRyu, Gyeong HeeJung, MinbokShin, Hyung-JoonLee, ZonghoonShin, Hyeon Suk
Keywords
in-plane heterostructure; graphene; hexagonal boron nitride; chemical vapor deposition; platinum
Issue Date
201507
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.15, no.7, pp.4769 - 4775
Abstract
Heterostructures of hexagonal boron nitride (h-BN) and graphene have attracted a great deal of attention for potential applications in 2D materials. Although several methods have been developed to produce this material through the partial substitution reaction of graphene, the reverse reaction has not been reported. Though the endothermic nature of this reaction might account for the difficulty and previous absence of such a process, we report herein a new chemical route in which the Pt substrate plays a catalytic role. We propose that this reaction proceeds through h-BN hydrogenation; subsequent graphene growth quickly replaces the initially etched region. Importantly, this conversion reaction enables the controlled formation of patterned in-plane graphene/h-BN heterostructures, without needing the commonly employed protecting mask, simply by using a patterned Pt substrate
URI
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DOI
http://dx.doi.org/10.1021/acs.nanolett.5b01704
ISSN
1530-6984
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