Fig. 4: Experimental single-QD emission line-broadening in core-only and core/shell QD heterostructures.
From: Ultra-narrow room-temperature emission from single CsPbBr3 perovskite quantum dots
a PL spectrum of a representative core-only QD (blue points) and of a core/shell QD (red points) exhibiting the record-low PL line broadening. Solid lines are best fit to a Lorentzian function. b Histogram of emission line-broadening for several core-only and core/shell QDs.
