Figure 5

Fitted PL spectra of monolayer WS₂ (a) before and (b) after F₄TCNQ doping. Fitted PL spectra of monolayer MoS₂ (c) before and after F₄TCNQ doping (d). Lorentzian functions were used to fit the A and B peaks, with A peaks assumed to be composed of trions (X⁻) and excitons (X).