Fig. 2
From: A new route for caesium lead halide perovskite deposition
Micro-PL measurements at room temperature of (upper panel) CsPbBr3 and (lower panel) CsPbCl3 samples deposited on glass: a) Optical image of the sample acquired in a 20 × 40 µm2 area; b) PL intensity variations in the same sample area; c) Energy of the PL peak in the same sample area; d) PL spectra at different points in the micro-PL map