Research Article

Structural, Electronic, Dynamic, and Optical Properties of 2D Monolayer Tungsten Telluride (2H-WTe2) under Small Biaxial Strain Using Density Functional Theory (DFT and DFT + U)

Figure 7

The real and imaginary part of the dielectric function versus photon energy (a and c) with polarization parallel to the plane and (b and d) perpendicular to the plane, respectively, for the monolayer of 2H-WTe2.
(a)
(b)
(c)
(d)