73 citations · 149 across the 6 of their papers we have counts for
6 papers
Energy-gap Opening and Quenching in Graphene under Periodic External Potentials
Aihua Zhang, Zhenxiang Dai, Lei Shi +2
In this paper, we investigated the effects of periodic external potentials on properties of charge carriers in graphene using both the first-principles method based on density func…
Band gap engineering in graphene and hexagonal BN antidot lattices: A first principles study
Aihua Zhang, Hao Fatt Teoh, Zhenxiang Dai +2
Effects of antidot lattices on electronic structures of graphene and hexagonal BN (h-BN) are investigated using the first principles method based on density functional theory. For…
Electrical transport across metal/two-dimensional carbon junctions: Edge versus side contacts
Yihong Wu, Ying Wang, Jiayi Wang +6
Metal/two-dimensional carbon junctions are characterized by using a nanoprobe in an ultrahigh vacuum environment. Significant differences were found in bias voltage (V) dependence…
Switching and Rectification of a Single Light-sensitive Diarylethene Molecule Sandwiched between Graphene Nanoribbons
Yongqing Cai, Aihua Zhang, Yuan Ping Feng +1
The 'open' and 'closed' isomers of the diarylethene molecule that can be converted between each other upon photo-excitation are found to have drastically different current-voltage…
Strain effects on work functions of pristine and potassium-decorated carbon nanotubes
Yongqing Cai, Aihua Zhang, Yuan Ping Feng +3
Strain dependence of electronic structures and work functions of both pristine and potassium doped (5,5) (armchair) and (9,0) (zigzag) carbon nanotubes (CNTs) has been thoroughly s…
Bandgap engineering of zigzag graphene nanoribbons by manipulating edge states via defective boundaries
Aihua Zhang, Yihong Wu, San-Huang Ke +2
One of severe limits of graphene nanoribbons (GNRs) in future applications is that zigzag GNRs (ZGNRs) are gapless, so cannot be used in field effect transistors (FETs). In this pa…