منابع مشابه
Extrinsic morphology of graphene
Graphene is intrinsically non-flat and corrugates randomly. Since the corrugating physics of atomically thin graphene is strongly tied to its electronics properties, randomly corrugating morphology of graphene poses a significant challenge to its application in nanoelectronic devices for which precise (digital) control is the key. Recent studies revealed that the morphology of substratesupporte...
متن کاملPhonon-limited transport coefficients in extrinsic graphene.
The effect of electron-phonon scattering processes on the thermoelectric properties of extrinsic graphene was studied. Electrical and thermal resistivity, as well as the thermopower, were calculated within the Bloch theory approximations. Analytical expressions for the different transport coefficients were obtained from a variational solution of the Boltzmann equation. The phonon-limited electr...
متن کاملSubstrate-regulated morphology of graphene
We delineate a general theoretical framework to determine the substrate-regulated graphene morphology through energy minimization. We then apply such a framework to study the graphene morphology on a substrate with periodic surface grooves. Depending on the substrate surface roughness and the graphene–substrate interfacial bonding energy, the equilibrium morphology of graphene ranges from (1) c...
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متن کاملIntrinsic and extrinsic performance limits of graphene devices on SiO2.
The linear dispersion relation in graphene gives rise to a surprising prediction: the resistivity due to isotropic scatterers, such as white-noise disorder or phonons, is independent of carrier density, n. Here we show that electron-acoustic phonon scattering is indeed independent of n, and contributes only 30 Omega to graphene's room-temperature resistivity. At a technologically relevant carri...
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ژورنال
عنوان ژورنال: Modelling and Simulation in Materials Science and Engineering
سال: 2011
ISSN: 0965-0393,1361-651X
DOI: 10.1088/0965-0393/19/5/054005