Width, L (#monolayer) Potential, V (eV) 1 0.000 2 0.00000 2 0.00000 2 0.00000 2 0.00000 2 0.30000 3 0.30000 3 0.30000 4 0.30000 3 0.30000 3 0.30000 2 0.00000 2 0.00000 2 0.00000 2 0.00000 2 0.00000 1 0.000