Fig. 2
From: Pressure-induced emission of cesium lead halide perovskite nanocrystals
High-pressure photoluminescence properties of Cs4PbBr6 NCs. a, b, and c Changes in the PL spectra of Cs4PbBr6 NCs under pressure. Black arrows indicate the evolution of the PL spectra as a function of pressure. d Pressure-dependent chromaticity coordinates of the emissions
