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Size dependent mechanical properties of graphene nanoribbons: Molecular dynamics simulation

  • Y. J. Sun
  • , F. Ma
  • , K. W. Xu
  • Xi'an Jiaotong University
  • Xi'an University of Arts and Science

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

6 引用 (Scopus)

摘要

Strain engineering is an effective method to tune the band gap and electronic transport properties of graphene nanoribbons (GNRs). However, strain/stress field may promote the system deviating from the equilibrium state, and the mechanical stability will become one of the key issues for reliable services of relevant devices. In this paper, the size-dependent mechanical properties of GNRs under tensile loading were studied by Molecular Dynamics (MD) simulations. The results indicate that the yield stress of both zigzag and armchair GNRs decreases with the ribbon length changing from 240 Â to 30 Â. However, the ductility of armchair GNRs was significantly improved. Radial Distribution Function (RDF) was employed to analyze the evolution of atomic configurations. It showed that lattice shearing is the main mechanism for the ductility of armchair GNRs.

源语言英语
主期刊名Materials Performance, Modeling and Simulation
出版商Trans Tech Publications Ltd
页456-460
页数5
ISBN(印刷版)9783037856093
DOI
出版状态已出版 - 2013
活动Chinese Materials Congress 2012, CMC 2012 - Taiyuan, 中国
期限: 13 7月 2012 → 18 7月 2012

丛书

姓名Materials Science Forum
卷749
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress 2012, CMC 2012
国家/地区中国
市Taiyuan
时期13/07/12 → 18/07/12

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