Tunable SnO₂ Nanoribbon by Electric Fields and Hydrogen Passivation

Figure 3

Band structure and DOS (left) and the corresponding charge densities for CBM (right upper) and VBM (right lower) of Z-SnO₂NRs at 0 V/Ǻ (a) and 0.13 V/Ǻ (b). The isosurface is 5.0 × 10⁻³ e/Ǻ³. The Fermi level is shifted to zero. Different colors in curves represent different energy levels.

(a)

(b)