Results 31 to 40 of about 60,665 (288)
Magnetic confinement of massless Dirac fermions in graphene [PDF]
, 2007 Due to Klein tunneling, electrostatic potentials are unable to confine Dirac electrons. We show that it is possible to confine massless Dirac fermions in a monolayer graphene sheet by inhomogeneous magnetic fields.
De Martino, A., Dell'Anna, L., Egger, R.
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Tunable Quantum Dots in Bilayer Graphene [PDF]
Nano Letters, 2007 5 pages, to appear in Nano ...
Milton Pereira, J. +2 more
openaire +4 more sources
Recent Advances in Two-Dimensional Quantum Dots and Their Applications
Nanomaterials, 2021 Two-dimensional quantum dots have received a lot of attention in recent years due to their fascinating properties and widespread applications in sensors, batteries, white light-emitting diodes, photodetectors, phototransistors, etc.
Konthoujam James Singh +7 more
doaj +1 more source
Fast response ZnO/PVA nanocomposite-based photodiodes modified by graphene quantum dots
Materials & Design, 2019 In this paper, a new class of the polymer-based photodetectors is introduced. Poly (vinyl alcohol) is used as the host polymer and ZnO@graphene quantum dots utilized as the filler of the polymer matrix.
Seyedeh Soraya Mousavi +2 more
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Quantum dots and spin qubits in graphene
, 2010 This is a review on graphene quantum dots and their use as a host for spin qubits. We discuss the advantages but also the challenges to use graphene quantum dots for spin qubits as compared to the more standard materials like GaAs.
Björn Trauzettel +16 more
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Robustness of edge states in graphene quantum dots [PDF]
, 2010 We analyze the single particle states at the edges of disordered graphene quantum dots. We show that generic graphene quantum dots support a number of edge states proportional to circumference of the dot over the lattice constant.
Akhmerov, A. R., Guinea, F., Wimmer, M.
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Graphene quantum dots hybrids in energy storage/conversion Systems—State-of-the-art and advances
Hybrid AdvancesGraphene quantum dots are tiny (sizes of few nm) zero dimensional crystalline nanoentities, inheriting noteworthy optical/electronic, fluorescence, magnetic, quantum confinements, and surface/edge properties for scorching nanotechnology areas ranging ...
Ayesha Kausar
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Excitonic absorption in gate controlled graphene quantum dots
, 2010 We present a theory of excitonic processes in gate controlled graphene quantum dots. The dependence of the energy gap on shape, size and edge for graphene quantum dots with up to a million atoms is predicted. Using a combination of tight-binding, Hartree-
A. D. Güçlü +3 more
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Transport through graphene quantum dots
Reports on Progress in Physics, 2012 We review transport experiments on graphene quantum dots and narrow graphene constrictions. In a quantum dot, electrons are confined in all lateral dimensions, offering the possibility for detailed investigation and controlled manipulation of individual quantum systems.
Güttinger J +7 more
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Graphene quantum dots embedded in hexagonal boron nitride sheets
, 2010 We have carried out first-principles calculations on electronic properties of graphene quantum dots embedded in hexagonal boron nitride monolayer sheets.
Li, Junwen, Shenoy, Vivek B.
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