We review the electronic properties of bilayer graphene, beginning with a description of the tight-binding model of bilayer graphene and the derivation of the effective Hamiltonian describing massive chiral quasiparticles in two parabolic bands at low energy. We take into account five tight-binding par...
The electronic properties of graphene stacks are discussed and vary with stacking order and number of layers. Edge (surface) states in graphene depend on the edge termination (zigzag or armchair) and affect the physical properties of nanoribbons. Different types of disorder modify the Dirac equation...
C. Bilayer graphene: Tight-binding approach 118 D. Epitaxial graphene 119 E. Graphene stacks 120 1. Electronic structure of bulk graphite 121 F. Surface states in graphene 122 G. Surface states in graphene stacks 124 H. The spectrum of graphene nanoribbons 124 1. Zigzag nanoribbons 125 2. A...
Fano resonances of bilayer graphene could be attractive for thermoelectric devices. The special profile presented by such resonances could significantly enhance the thermoelectric properties. In this work, we study the thermoelectric properties of bilaye
[19] reported that the uniaxial strain was highly efficient in tuning the electronic structures and properties of graphene/Blue P bilayer. The band gap of the graphene/Blue P heterostructure could be easily opened by ~120 meV near ±2%, and the value of band gap increases with increasing the...
The electronic band structure of twisted bilayer graphene develops van Hove singularities whose energy depends on the twist angle between the two layers. Using Raman spectroscopy, we monitor the evolution of the electronic band structure upon doping using the G peak area which is enhanced when the ...
ElementaryElectronicPropertiesofGraphene112A.Singlelayer:Tight-bindingapproach1121.Cyclotronmass1132.Densityofstates114B.Diracfermions1141.ChiraltunnelingandKleinparadox1152.ConfinementandZitterbewegung117C.Bilayergraphene:Tight-bindingapproach118D.Epitaxialgraphene119E.Graphenestacks1201.Electronicstructureofbulk...
Our results indicate that this hetro-bilayer has a direct band gap of 1.48 \\( eV \\), which is in the optimal range of the efficient single-junction solar cell, and forms the type-II band alignment in which \\( SnS \\) is the donor and \\( GeSe \\) is the acceptor. The ...
Electronic properties of graphene with single vacancy and stone-wales defects. Appl. Surf. Sci. 2017, 414, 101–106. [CrossRef] 15. Jaskolski, W.; Pelc, M.; Chico, L.; Ayuela, A. Existence of nontrivial topologically protected states at grain boundaries in bilayer graphene: Signatures ...
Graphene is a rapidly rising star on the horizon of materials science and condensed-matter physics. This strictly two-dimensional material exhibits exceptionally high crystal and electronic quality, and, despite its short history, has already revealed a