▲ | One-step synthesis of graphene containing topological defects(pubs.rsc.org) | |
2 points by westurner 10 hours ago | 1 comments | ||
▲ | westurner 10 hours ago | parent [-] | |
> Abstract: [...] We present a one-step chemical vapour deposition procedure aimed at retaining the precursor topology when incorporated into the grown carbonaceous film. When azupyrene, the molecular analogue of the Stone-Wales defect in graphene, is used as a precursor, carbonaceous monolayers with a range of morphologies are produced as a function of the copper substrate growth temperature. The higher the substrate temperature during deposition, the closer the resulting monolayer is to ideal graphene. Analysis, with a set of complementary materials characterisation techniques, reveals morphological changes closely correlated with changes in the atomic adsorption heights, network topology, and concentration of 5/7 membered carbon rings. Does this make low temperature superconductors like trilayer and pentalayer rhombohedral graphene easier to make? |