Fig. 3 | Communications Physics

Fig. 3

From: Room temperature continuous-wave excited biexciton emission in perovskite nanoplatelets via plasmonic nonlinear fano resonance

Fig. 3

Spectral characteristics of cavity-coupled perovskite nanoplatelets (NPLs) fluorescence. Perovskite NPL off-cavity fluorescence spectrum (P1) shows a single symmetric exciton peak at 500 nm, while in the on-cavity spectrum (P2), a biexciton peak at 520 nm under continuous wave radiation emerged. The binding energy of the biexciton is about 95 meV. The inset is an scanning electronic microscopy (SEM) image of a cavity (scale bar 1 μm), illustrating the location of the incident laser spot for the on-cavity (P2) and off-cavity (P1) measurements. The error bar corresponds to the standard deviation of the measurements

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