• 文献标题:   Bandgap engineering in aperiodic Thue-Morse graphene superlattices
  • 文献类型:   Article
  • 作  者:   CARRILLODELGADO EA, GAGGEROSAGER LM, RODRIGUEZVARGAS I
  • 作者关键词:  
  • 出版物名称:   AIP ADVANCES
  • ISSN:   2158-3226
  • 通讯作者地址:   Univ Autonoma Zacatecas
  • 被引频次:   0
  • DOI:   10.1063/1.5081750
  • 出版年:   2019

▎ 摘  要

The lack of bandgap in graphene is the main factor that prevents that this outstanding material be implemented in optoelectronics. In this work, we show that by nanostructuring graphene aperiodically it is possible to have an efficient transmission bandgap engineering. In particular, we are considering aperiodic graphene superlattices in which electrostatic barriers are arranged following the basic construction rules of the Thue-Morse sequence. We find that the transmission bandgap can be modulated readily by changing the angle of incidence as well as by appropriately choosing the generation of the Thue-Morse superlattice. Even, this angle-dependent bandgap engineering is more effective than the corresponding one for periodic graphene superlattices. (C) 2019 Author(s).