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Author

Jeong, Hu Young
UNIST Central Research Facilities (UCRF)
Research Interests
  • Soft material characterization such as graphene using a low kV Cs-corrected TEM

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Growth of High-Crystalline, Single-Layer Hexagonal Boron Nitride on Recyclable Platinum Foil

Cited 16 times inthomson ciCited 13 times inthomson ci
Title
Growth of High-Crystalline, Single-Layer Hexagonal Boron Nitride on Recyclable Platinum Foil
Author
Kim, GwangwooJang, A-RangJeong, Hu YoungLee, ZonghoonKang, Dae JoonShin, Hyeon Suk
Keywords
Ammonia borane; Crystalline nature; Hexagonal boron nitride; Hexagonal boron nitride (h-BN); Platinum foils; Sapphire substrates; Single layer; UV visible absorption spectrum
Issue Date
201304
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.13, no.4, pp.1834 - 1839
Abstract
Hexagonal boron nitride (h-BN) is gaining significant attention as a two-dimensional dielectric material, along with graphene and other such materials. Herein, we demonstrate the growth of highly crystalline, single-layer h-BN on Pt foil through a low-pressure chemical vapor deposition method that allowed h-BN to be grown over a wide area (8 X 25 mm(2)). An electrochemical bubbling-based method was used to transfer the grown h-BN layer from the Pt foil onto an arbitrary substrate. This allowed the Pt foil, which was not consumed during the process, to be recycled repeatedly. The UV-visible absorption spectrum of the single-layer h-BN suggested an optical band gap of 6.06 eV, while a high-resolution transmission electron microscopy image of the same showed the presence of distinct hexagonal arrays of B and N atoms, which were indicative of the highly crystalline nature and single-atom thickness of the h-BN layer. This method of growing single-layer h-BN over large areas was also compatible with use of a sapphire substrate.
URI
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DOI
http://dx.doi.org/10.1021/nl400559s
ISSN
1530-6984
Appears in Collections:
SNS_Journal Papers
UCRF_Journal Papers
MSE_Journal Papers

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