Figure 1: Excitation density-dependent PL of solution-processed CH3NH3PbBr3 films.
From: Exciton localization in solution-processed organolead trihalide perovskites
(a) Steady-state PL spectra recorded with excitation density from 0.01 to 4 nJ cm−2. All spectra are measured in vacuum at RT. In all spectra, the peak energy (indicated by the dashed line), lineshape and linewidth are identical within the experimental error. (b) Logarithm plot of the integrated PL intensity versus excitation density. The data show a power-law dependence with k=1.179.
