Research / 2019 / Article / Fig 2

Review Article

Engineering Epitaxial Silicene on Functional Substrates for Nanotechnology

Figure 2

Schematics of the sequential steps for the Al2O3 encapsulation of epitaxial silicene. Silicon deposition by MBE (a); stabilization via interaction with substrate of metastable silicene (b); reactive molecular beam deposition of Al2O3 by aluminum flux in O2-rich overpressure (c); “silicene sandwich” where silicene is stabilized either on top or at the bottom (d).