This observation implies the non-convergence nature of the blinking timescale τR. Powerdependent FCS and sFCS studies revealed a slightly lower value of stretching exponent (β) at high pump intensity, suggesting a broader distribution of τR, associated with a larger OFF state fraction (T) (Tables ). Such an observation was already reported in the power-dependent FCS study of cube CsPbBr3 PNCs by the Samanta group, where this was attributed to the trapping of charge carriers by dispersive trap states at high pump intensity. In contrast to previous reports, we observed a gradual deceleration of τR with pump power (Tables ).