Fig. 3: Nanoscale exciton-trion interconversion through optical and electrical control. | Nature Communications

Fig. 3: Nanoscale exciton-trion interconversion through optical and electrical control.

From: Quantum tunneling high-speed nano-excitonic modulator

Fig. 3

a Contour plot of PL spectra of the MoS2 ML as a function of the tip-sample distance. b Distance-dependent change of X0 (red) and X- (blue) emission intensities, derived from (a). c PL spectra of the MoS2 ML as a function of the \({V}_{{{{\rm{tip}}}}}^{{{{\rm{DC}}}}}\), when the tip-sample distance is shorter than 3 nm (quantum tunneling regime). d Lorentz fitted PL spectra of the MoS2 ML when the \({V}_{{{{\rm{tip}}}}}^{{{{\rm{DC}}}}}\) is +10 V (top), 0 V (middle), and −10 V (bottom) on the Au tip. Black dashed lines in (a) and (c) indicate the energies of X0 and X-.

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