Tuning the energy gap of bilayer <italic>α</italic>-graphyne by applying strain and electric field

Tuning the energy gap of bilayer α-graphyne by applying strain and electric field

Hang Yang, Wen-Zhi Wu, Yu Jin, Guo Wan-Lin^†,

(a) Geometric structure of single-layer α-graphyne and (b) bilayer α-graphyne with AB stacking. The inequivalent atoms are indicated and different layers are shown in different colors.