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Kim, Sung Youb
Computational Advanced Nanomechanics (CAN) Lab
Research Interests
  • Computational Mechanics
  • Nanomechanics
  • Molecular Dynamics
  • FEM

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Graphene Origami with Highly Tunable Coefficient of Thermal Expansion

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dc.contributor.author Ho, Duc Tam ko
dc.contributor.author Park, Harold S. ko
dc.contributor.author Kim, Sung Youb ko
dc.contributor.author Schwingenschlögl, Udo ko
dc.date.available 2020-08-12T00:42:26Z -
dc.date.created 2020-08-11 ko
dc.date.issued 2020-07 ko
dc.identifier.citation ACS Nano, v.14, no.7, pp.8969 - 8974 ko
dc.identifier.issn 1936-0851 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/47476 -
dc.description.abstract The coefficient of thermal expansion, which measures the change in length, area, or volume of a material upon heating, is a fundamental parameter with great relevance for many applications. Although there are various routes to design materials with targeted coefficient of thermal expansion at the macroscale, no approaches exist to achieve a wide range of values in graphene-based structures. Here, we use molecular dynamics simulations to show that graphene origami structures obtained through pattern-based surface functionalization provide tunable coefficients of thermal expansion from large negative to large positive. We show that the mechanisms giving rise to this property are exclusive to graphene origami structures, emerging from a combination of surface functionalization, large out-of-plane thermal fluctuations, and the three-dimensional geometry of origami structures. ko
dc.language 영어 ko
dc.publisher American Chemical Society ko
dc.title Graphene Origami with Highly Tunable Coefficient of Thermal Expansion ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85087129387 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/acsnano.0c03791 ko
dc.identifier.url https://pubs.acs.org/doi/10.1021/acsnano.0c03791 ko
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