Extended Data Fig. 2: Time trace of CW PL mapping of one emitter under different top gate voltages.

The PL time traces at the top gate voltage of a, 0 V, b, −0.5 V, and c, −1.2 V, are shown. A bandpass filter was used to choose the emission peak with an energy of ~1.605 eV. While the PL intensity shows a gate dependence, the PL intensity remains stable in the time trace, indicating the absence of spectral jump and a stable photon emission.