Corpus ID: 237485412

Tunable band gaps and optical absorption properties of bent MoS$_2$ nanoribbons

  title={Tunable band gaps and optical absorption properties of bent MoS\$\_2\$ nanoribbons},
  author={Hong Tang and Bimal Neupane and Santosh Neupane and Shiqi Ruan and Niraj K. Nepal and Adrienn Ruzsinszky},
The large tunability of band gaps and optical absorptions of armchair MoS2 nanoribbons of different widths under bending is studied using density functional theory and many-body perturbation GW and Bethe-Salpeter equation approaches. We find that there are two critical bending curvatures, and the non-edge and edge band gaps generally show a non-monotonic trend with bending. The non-degenerate edge gap splits show an oscillating feature with ribbon width n, with a period βˆ†n = 3, due to quantum… Expand

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