The composition and structure of the ubiquitous hydrocarbon contamination on van der Waals materials
oleh: András Pálinkás, György Kálvin, Péter Vancsó, Konrád Kandrai, Márton Szendrő, Gergely Németh, Miklós Németh, Áron Pekker, József S. Pap, Péter Petrik, Katalin Kamarás, Levente Tapasztó, Péter Nemes-Incze
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2022-11-01 |
Deskripsi
Here, the authors attribute the ambient surface contamination of van der Waals materials to a self-organized molecular layer of normal alkanes with lengths of 20-26 carbon atoms. The alkane adlayer displaces the manifold other airborne contaminant species, capping the surface of graphene, graphite, hBN and MoS2.