Fig. 5: Optical and electrical characterization after plasma treatment.

a PL spectra of pristine MoS₂ (b) PL spectra of optimal-power plasma treated MoS₂ (c) Raman spectra of MoS₂ before and after optimal-power plasma treatment (d) I_D-V_D loop comparison before and after optimal-power plasma treatment at V_G = 0 V and scan rate 0.5 Vs⁻¹.