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Lee, Geunsik
Electronic Structure and Transport in Condensed Materials
Research Interests
  • open quantum system, non-equilibrium electron transport
  • electron correlation, dynamical mean field theory
  • 2D materials, metal complexes

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Isotope Effect on the Thermal Conductivity of Graphene

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Title
Isotope Effect on the Thermal Conductivity of Graphene
Other Titles
Isotope Effect on the Thermal Conductivity of Graphene
Author
Zhang, HengjiLee, GeunsikFonseca, Alexandre F.Borders, Tammie L.Cho, Kyeongjae
Issue Date
2010-07
Publisher
HINDAWI PUBLISHING CORPORATION
Citation
JOURNAL OF NANOMATERIALS, v.2010, pp.537657
Abstract
The thermal conductivity (TC) of isolated graphene with different concentrations of isotope (C(13)) is studied with equilibrium molecular dynamics method at 300 K. In the limit of pure C(12) or C(13) graphene, TC of graphene in zigzag and armchair directions are similar to 630 W/mK and similar to 1000W/mK, respectively. We find that the TC of graphene can be maximally reduced by similar to 80%, in both armchair and zigzag directions, when a random distribution of C(12) and C(13) is assumed at different doping concentrations. Therefore, our simulation results suggest an effective way to tune the TC of graphene without changing its atomic and electronic structure, thus yielding a promising application for nanoelectronics and thermoelectricity of graphene-based nano device
URI
https://scholarworks.unist.ac.kr/handle/201301/13284
URL
http://www.hindawi.com/journals/jnm/2010/537657/
DOI
10.1155/2010/537657
ISSN
1687-4110
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CHM_Journal Papers
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