Table 2.

Parameters of the stacked layer model fit for the monolayer TMDs. All units are in nm.

	${\text{MoS}}_2$	${\text{MoSe}}_2$	${\text{WS}}_2$	${\text{WSe}}_2$
Thickness	0.71 ± 0.07	0.70 ± 0.07	0.65 ± 0.07	0.62 ± 0.06
Surface roughness	0.07 ± 0.01	0.16 ± 0.02	0.07 ± 0.01	0.07 ± 0.01