• 文献标题:   Low Thermal Conductivity of Paperclip-Shaped Graphene Superlattice Nanoribbons
  • 文献类型:   Article
  • 作  者:   LU X, ZHONG WR
  • 作者关键词:  
  • 出版物名称:   CHINESE PHYSICS LETTERS
  • ISSN:   0256-307X EI 1741-3540
  • 通讯作者地址:   Jinan Univ
  • 被引频次:   4
  • DOI:   10.1088/0256-307X/32/9/096501
  • 出版年:   2015

▎ 摘  要

We design some graphene superlattice structures with ultra-low thermal conductivity 121 W/mK, which is only 6% of the straight graphene nanoribbons. The thermal conductivity of graphene superlattice nanoribbons (GSNRs) is investigated by using molecular dynamics simulations. It is reported that the thermal conductivity of graphene superlattice nanoribbons is significantly lower than that of the straight graphene nanoribbons (GNRs). Compared with the phonon spectra of straight GNRs, GSNRs have more forbidden bands. The overlap of phonon spectra between two supercells is shrinking.