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Ko, Hyunhyub
Functional Nanomaterials & Devices Lab
Research Interests
  • Functional nanomaterials, flexible electronics, electronic skins, wearable sensors

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Metal-catalyzed crystallization of amorphous carbon to graphene

Cited 82 times inthomson ciCited 64 times inthomson ci
Title
Metal-catalyzed crystallization of amorphous carbon to graphene
Author
Zheng, MaxwellTakei, KuniharuHsia, BenjaminFang, HuiZhang, XiaoboFerralis, NicolaKo, HyunhyubChueh, Yu-LunZhang, YuegangMaboudian, RoyaJavey, Ali
Keywords
Amorphous carbon layer; Carbon source; Chemical vapor deposition process; Deposition Parameters; Graphene layers; Graphene sheets; Graphenes; Process schemes; Raman analysis; Synthesis method; Technological applications; Thermal-annealing
Issue Date
201002
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.96, no.6, pp.1 - 3
Abstract
Metal-catalyzed crystallization of amorphous carbon to graphene by thermal annealing is demonstrated. In this "limited source" process scheme, the thickness of the precipitated graphene is directly controlled by the thickness of the initial amorphous carbon layer. This is in contrast to chemical vapor deposition processes, where the carbon source is virtually unlimited and controlling the number of graphene layers depends on the tight control over a number of deposition parameters. Based on the Raman analysis, the quality of graphene is comparable to other synthesis methods found in the literature, such as chemical vapor deposition. The ability to synthesize graphene sheets with tunable thickness over large areas presents an important progress toward their eventual integration for various technological applications.
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DOI
http://dx.doi.org/10.1063/1.3318263
ISSN
0003-6951
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ECHE_Journal Papers
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