Fig. 2: Degradation of band nesting due to the interlyaer coupling. | Nature Communications

Fig. 2: Degradation of band nesting due to the interlyaer coupling.

From: Achieving near-perfect light absorption in atomically thin transition metal dichalcogenides through band nesting

Fig. 2

a Electronic band structures, b momentum-resolved band nesting maps, c real part of 2D optical conductivities, and d absorbances of freestanding mono and bilayer MoS2. a Green arrows highlight an excellent band nesting of monolayer MoS2, whereas red arrows show the destruction of the band nesting in the bilayer due to the interlayer coupling. b The color contour map indicates the energy difference between the energy of the lowest conduction, EC, and the highest valence band, EV, and the solid green lines show the first Brillouin zone. c, d A gray dashed line indicates an artificial bilayer structure having no interlayer coupling.

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