Fig. 3: Heterogeneous far-field optical properties.

a AFM topography of the confocal PL scan area, with the monolayer highlighted in pink. The dark lines are wrinkles between the cones. b Averaged spectra from a bright and dim region of the sample, corresponding to the yellow ellipse and featureless area to its left in (d). The two insets showcase low-temperature data from a similar wrinkle sample, demonstrating antibunched emission from a spectrally isolated narrow emitter (marked in orange). c–e Confocal PL maps showing the integrated intensity in the three correspondingly colored spectral windows in (b). The areas circled in yellow highlight the presence of localized states at different energies. All scale bars are 2 μm.