Efficientp-typeDopinginGrapheneviaMonolayerManganese-oxideNanoparticlesDecoration

Nanobase公司共焦拉曼成像系统在石墨烯方面的应用文章。 We demonstrated that manganese-oxide nanoparticles (Mn3O4 NPs) acted as an efficient p-typedopant for graphene. Uniformly-sized were Mn3O4 NPs (∼5.5 nm in diameter) were synthesizedby using a thermal decomposition method and were decorated on single-layer graphene by using anex-situ method. The morphology and the bonding status of the NP-decorated graphene were characterizedby using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS).Mn3O4 clusters with a lateral size of 10 − 50 nm and a monolayer thickness were decorated on thegraphene.