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This paper discusses synthesis of homoepitaxial graphene on the polar surfaces of silicon carbide.The growth involves a number of annealing steps of SiC single crystal wafers in hydrogen and argon atmospheres and results in the homogeneous coverage of whole wafers. Hydrogen intercalation removes the interface layer with drastic and desirable results for the electronic properties of graphene including...
Inspired by strong mechanical stability of "Y"-shaped beams for building construction, we design a new class of quasi-one-dimensional graphene nanostructures, namely, the tri-wing graphene (TWG) nanoribbons. Not only a TWG possesses significantly augmented mechanical stability against torsional and compression forces, but also each wing of the TWG can retain independent electronic properties...
Graphene, as a rising star in material science, has recently attracted extensive scientific and technological interest owing to its strictly two-dimensional structure and extraordinary electronic, thermal and mechanical properties [1-3]. Chemical approaches, as a low cost method, could produce large-scale production of graphene, which will speed up the application of graphene. In this paper, graphene...
The properties of graphene nanoribbons can be modified by impurity atoms. Recently, the migration of individual gold atoms doped in graphenic structures has been studied in situ by high-resolution transmission electron microscopy (HRTEM) [1]. Later, density-functional theory calculations were used to explain the dynamics of the gold atoms on substitutional sites in graphene [2]. In this article, we...
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