Elettra-Sincrotrone Trieste S.C.p.A. website uses session cookies which are required for users to navigate appropriately and safely. Session cookies created by the Elettra-Sincrotrone Trieste S.C.p.A. website navigation do not affect users' privacy during their browsing experience on our website, as they do not entail processing their personal identification data. Session cookies are not permanently stored and indeed are cancelled when the connection to the Elettra-Sincrotrone Trieste S.C.p.A. website is terminated.
More info
OK

Microscopic View on a Chemical Vapor Deposition Route to Boron-Doped Graphene Nanostructures

The whole set of experiments allow us to clarify that boron is effective at promoting the anchoring carbon species on the surface.
M. Cattelan et al. Chem. Mater. 25(9),pp1490-95, 2013
.

Single layer boron-doped graphene layers have been grown on polycrystalline copper foils by chemical vapor deposition using methane and diborane as carbon and boron sources, respectively. Any attempt to deposit doped layers in one-step has been fruitless, the reason being the formation of very reactive boron species as a consequence of diborane decomposition on the Cu surface, which leads to disordered nonstoichiometric carbides. However, a two-step procedure has been optimized: as a first step, the surface is seeded with pure graphene islands, while the boron source is activated only in a second stage.

The effective substitutional doping (of the order of about 1%) has been demonstrated by Raman and photoemission experiments. The electronic properties of doped layers have been characterized by spatially resolved photoemission band mapping carried out on single domain graphene flakes using a photon beam with a spot size of 1 μm. The whole set of experiments allow us to clarify that boron is effective at promoting the anchoring carbon species on the surface.

Retrieve article

Microscopic View on a Chemical Vapor Deposition Route to Boron-Doped Graphene Nanostructures, M. Cattelan et al. Chem. Mater. 25(9),pp1490-95, 2013

Last Updated on Wednesday, 29 April 2015 14:07