What is silicene?

Silicene is a two-dimensional allotrope of silicon, with a hexagonal honeycomb structure similar to that of graphene.

What is the size of the image of silicene?

Image size 16×16 nm. Silicene is a two-dimensional allotrope of silicon, with a hexagonal honeycomb structure similar to that of graphene.

What is the band structure of silicene?

In spite of the low buckled geometry, the band structure of silicene resembles that of graphene, that is, the π and π ∗ bands cross linearly at the Fermi level ( EF ), forming the famous “Dirac cone” at the symmetric point K in the reciprocal space.

Is silicene a dielectric material?

On the common dielectric layer of SiO 2, silicene would covalently bond with Si and O atoms. A true dielectric material that will not disturb the electronic properties of silicene is thus desirable.