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Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
Research Interests
  • Molecular modeling and simulation, statistical thermodynamics, molecular physics


Designed three-dimensional freestanding single-crystal carbon architectures

DC Field Value Language Park, Ji-Hoon ko Cho, Dae-Hyun ko Moon, Youngkwon ko Shin, Ha-Chul ko Ahn, Sung-Joon ko Kwak, Sang Kyu ko Shin, Hyeon-Jin ko Lee, Changgu ko Ahn, Joung Rea ko 2014-12-18T00:08:35Z - 2014-12-17 ko 2014-11 ko
dc.identifier.citation ACS NANO, v.8, no.11, pp.11657 - 11665 ko
dc.identifier.issn 1936-0851 ko
dc.identifier.uri -
dc.description.abstract Single-crystal carbon nanomaterials have led to great advances in nanotechnology. The first single-crystal carbon nanomaterial, fullerene, was fabricated in a zero-dimensional form. One-dimensional carbon nanotubes and two-dimensional graphene have since followed and continue to provide further impetus to this field. In this study, we fabricated designed three-dimensional (3D) single-crystal carbon architectures by using silicon carbide templates. For this method, a designed 3D SiC structure was transformed into a 3D freestanding single-crystal carbon structure that retained the original SiC structure by performing a simple single-step thermal process. The SiC structure inside the 3D carbon structure is self-etched, which results in a 3D freestanding carbon structure. The 3D carbon structure is a single crystal with the same hexagonal close-packed structure as graphene. The size of the carbon structures can be controlled from the nanoscale to the microscale, and arrays of these structures can be scaled up to the wafer scale. The 3D freestanding carbon structures were found to be mechanically stable even after repeated loading. The relationship between the reversible mechanical deformation of a carbon structure and its electrical conductance was also investigated. Our method of fabricating designed 3D freestanding single-crystal graphene architectures opens up prospects in the field of single-crystal carbon nanomaterials and paves the way for the development of 3D single-crystal carbon devices. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Designed three-dimensional freestanding single-crystal carbon architectures ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84912535987 ko
dc.identifier.wosid 000345553000071 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 * 2015-05-06 * 2014-12-17 *
dc.identifier.doi 10.1021/nn504956h ko
dc.identifier.url ko
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