Fig. 3: Photophysical properties of perovskites.
From: Molecular engineering towards efficientwhite-light-emitting perovskite
a Emission intensity versus excitation power for (2-ClPMA)2PbBr4. The linear fit result has high R2 value of 0.998. b Temperature-dependent PL spectra of (2-ClPMA)2PbBr4. Inset is the zoom-in picture from 395 to 420 nm. c Temperature-dependent FWHM and ratio ISTEs/IFEs of (2-ClPMA)2PbBr4 from 298 to 77 K. d PL decay profiles from FEs and STEs of (2-ClPMA)2PbBr4 and (3-ClPMA)2PbBr4.
