Tuning of energy levels and optical properties of graphene quantum dots
By Z. Z. Zhang, Kai Chang, François M. Peeters. 2008
281 citations recorded by the source corpus.
We investigate theoretically the magnetic levels and optical properties of zigzag- and armchair-edged hexagonal graphene quantum dots (GQDs) utilizing the tight-binding method. A bound edge state at zero energy appears for the zigzag GQDs in the absence of a magnetic field. The magnetic levels of GQDs exhibit a Hofstadter-butterfly spectrum and approach the Landau levels of two-dimensional graphene as the magnetic field increases. The optical properties are tuned by the size, the type of the edge, and the external magnetic field.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/010ec00275e60bfbb1262384207cc4da52931d60
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In Biomedical Engineering
In Materials Chemistry
Citations in the corpus
- Magical Allotropes of Carbon: Prospects and Applications (2016, background): “firmed that the quantity of white light consumed is related to the fine structure constant, preferably than being managed by material particulars.(254) The addition of an extra layer of graphene improves the amount of”
- Graphene Quantum Dots: Graphene-Enhanced Nanomaterials for Wall Painting Protection (Adv. Funct. Mater. 44/2018) (2018, unknown): “These extrinsic defects can be controlled by controlling the amount of oxygen functional group such as by oxidation and reduction (Luo et al., 2014; Sun et al., 2013b; Zhang et al., 2008).”