The interaction of silicene, the silicon counterpart of graphene, with (0001) ZnS surfaces is investigated theoretically, using first-principles simulations. The charge transfer occurring at the silicene/(0001) ZnS interface leads to the opening of an indirect energy band gap of about 0.7 eV in silicene. Remarkably, the nature (indirect or direct) and magnitude of the energy band gap of silicene can be controlled by an external electric field: the energy gap is predicted to become direct for electric fields larger than about 0.5 V à -1, and the direct energy gap decreases approximately linearly with the applied electric field. The predicted electric field tunable energy band gap of the silicene/(0001) ZnS interface is very promising for its potential use in nanoelectronic devices. © the Owner Societies 2013
Houssa, M., Van Den Broek, B., Scalise, E., Pourtois, G., Afanas'Ev, V., & Stesmans, A. (2013). An electric field tunable energy band gap at silicene/(0001) ZnS interfaces. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 15(11), 3702-3705 [10.1039/c3cp50391g].
Citazione: | Houssa, M., Van Den Broek, B., Scalise, E., Pourtois, G., Afanas'Ev, V., & Stesmans, A. (2013). An electric field tunable energy band gap at silicene/(0001) ZnS interfaces. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 15(11), 3702-3705 [10.1039/c3cp50391g]. | |
Tipo: | Articolo in rivista - Articolo scientifico | |
Carattere della pubblicazione: | Scientifica | |
Presenza di un coautore afferente ad Istituzioni straniere: | Si | |
Titolo: | An electric field tunable energy band gap at silicene/(0001) ZnS interfaces | |
Autori: | Houssa, M; Van Den Broek, B; Scalise, E; Pourtois, G; Afanas'Ev, V; Stesmans, A | |
Autori: | ||
Data di pubblicazione: | 2013 | |
Lingua: | English | |
Rivista: | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1039/c3cp50391g | |
Appare nelle tipologie: | 01 - Articolo su rivista |