• 文献标题:   Modification of mechanical, electronic and transport properties of AB-stacked bilayer hybrid armchair graphene nanoribbons: Concurrent influence of chemical derivation and uniaxial strain
  • 文献类型:   Article
  • 作  者:   RI NC, KIM CS, WI JH, RI SI
  • 作者关键词:   bilayer graphene nanoribbon, chemical derivation, strain, mechanical propertie, electronic propertie, transport propertie
  • 出版物名称:   DIAMOND RELATED MATERIALS
  • ISSN:   0925-9635 EI 1879-0062
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1016/j.diamond.2021.108575 EA AUG 2021
  • 出版年:   2021

▎ 摘  要

In this paper, we investigate the effect of chemical derivation and strain on the mechanical, electronic, and transport properties of AB-stacked bilayer hybrid AGNRs. The results show that the stresses as function of chemical derivation classes are remarkably changed with increasing of width under 10%. Moreover, the failure characteristics of all systems are found under about 11-13% strain. The systems derived by GA have the largest value of Young's modulus. The systems with width of 5 are semiconductors with wide band gap of 3.15 eV-3.81 eV within the strain range -10% to 10%. Interestingly, the 7-GA(FGA)NRs transform the semiconductor into metallic under sufficient tensile strain (over 8% strain). Especially, the 9-GANR may experience a direct gap -> indrect gap transition at 8%. The p-orbital of C atoms in purity b-GNRs of edge parts is crucially contributed to the electronic properties near Fermi level. The I-V curve of 7-GANR system exhibits the semiconducting behavior with wide band gap under -8% strain, while for 8% it reveals metallic ones.