Table 1 Total energies and work functions (WF) results for all the heterostructures and their constituent systems. In the case of freestanding and peeled-off plumbene layers, the two reported values are ionization energies and electron affinities. Si-term refers to the Si-terminated SiC substrate, and C-term to the C-terminated case. PO stands for peeled-off layer, for which the isolated plumbene and graphene calculations have been performed extracting their geometry from the heterostructure.

From: Thermodynamics and electronic structure of adsorbed and intercalated plumbene in graphene/hexagonal SiC heterostructures