Figure 5
(a) PL spectra of the perovskite films on AAO templates with different size of pore; (b) Emission peaks and intensities of the perovskite films; (c) PL spectra of the perovskite film on AAO template with dpore = 200 nm recorded with excitation intensity from 0.058 to 0.743 uW. All spectra are measured in air at room temperature. The peak energy is indicated by the dashed line; (d) Logarithm plot of the integrated PL intensity versus excitation intensity.
