Fig. 2: Dependence of exciton characteristics on the dielectric environment. | npj 2D Materials and Applications

Fig. 2: Dependence of exciton characteristics on the dielectric environment.

From: Symmetry-dependent exciton-exciton interaction and intervalley biexciton in monolayer transition metal dichalcogenides

Fig. 2

a Variation of the exciton radius and b of the binding energy with the surroundings average dielectric constant. The orange lines are for ML WSe2 (μr = 0.2 m0, r0 = 45 Å), green lines—for ML WS2 (μr = 0.175 m0, r0 = 34 Å), blue lines—for ML MoS2 (μr = 0.275 m0, r0 = 34 Å), and purple lines—for ML MoSe2 (μr = 0.35 m0, r0 = 39 Å). The small stars with the respective colors depict the corresponding experimental amounts for Eb33.

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