Figure 4 | Scientific Reports

Figure 4

From: Ab initio prediction of semiconductivity in a novel two-dimensional Sb2X3 (X= S, Se, Te) monolayers with orthorhombic structure

Figure 4

(a) Imaginary and real parts of the dielectric function as a function of photon energy of the \(\hbox {Sb}_2\hbox {S}_3\), \(\hbox {Sb}_2\hbox {Se}_3\) and \(\hbox {Sb}_2\hbox {Te}_3\) monolayers for the in-plane polarizations (\(\hbox {E}\parallel \hbox {x}\) and \(\hbox {E}\parallel \hbox {y}\)), predicted using the RPA + HSE06 approach. Absorption coefficient as a function of (b) wavelength and (c) energy for the \(\hbox {Sb}_2\hbox {X}_3\) monolayers for the in-plane polarizations (\(\hbox {E}\parallel \hbox {x}\) and \(\hbox {E}\parallel \hbox {y}\)) in the UV–vis range of light, predicted using the RPA + HSE06 approach.

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