“…Colloidal semiconductor quantum dots (QDs) show superior optical properties including high photoluminescence (PL) quantum yields (QYs), broad absorption, and narrow emission spectra, − making them promising materials for light-emitting diodes, , lasers, photovoltaic devices, − single-photon sources, and biomedical labels. − Nonetheless, almost all single colloidal QDs exhibit PL blinking, − the random switching between bright (on) and dim/dark (off) states, which is a considerable drawback in QD-based applications, e.g., degrading the performance of lasers and light-emitting diodes, interrupting the photon emission of quantum light sources, and causing difficulty in single-particle tracking …”