Armchair graphene nanoribbons: Electronic structure and electric-field modulation

By H. Raza, Edwin Chihchuan Kan. 2008

191 citations recorded by the source corpus.

We report electronic structure and electric-field modulation calculations in the width direction for armchair graphene nanoribbons (acGNRs) using a semiempirical extended H\"uckel theory. Important band-structure parameters are computed, e.g., effectives masses, velocities, and band gaps. For the three types of acGNRs, the ${p}_{z}$ orbital tight-binding parameters are extracted if feasible. Furthermore, the effect of electric field in the width direction on acGNRs dispersion is explored. It is shown that for the two types of semiconducting acGNRs, an external electric field can reduce the band gap to a few meV with different quantitative behaviors.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/e7cedfc9e024bbb107e12e202e3fee2b4082fbf9

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In Atomic and Molecular Physics, and Optics

1. Gang Zhang
2. Yong‐Wei Zhang
3. Frank Schwierz

In Materials Chemistry

1. Yong‐Wei Zhang
2. Gang Zhang
3. Yongqing Cai
4. Z. Ong
5. V. Sorkin
6. Frank Schwierz

Citations in the corpus

• Recent Advances in the Study of Phosphorene and its Nanostructures (2017, background): “Reprinted with permission from Raza and Kan.(256) Permission to reuse must be obtained from the rightsholder.”
• Graphene Transistors: Status, Prospects, and Problems (2013, background): “Moreover, bandstructure calculations for GNRs and bilayer graphene reveal a high degree of symmetry of the conduction and valence bands pointing to similar effective electron and hole masses [51], [59].”