Extended Data Fig. 1: Photoluminescence spectra of se-epitaxy films.
From: Perovskite heteroepitaxy for high-efficiency and stable pure-red LEDs
a, The se-epitaxy films exhibited tunable photoluminescence wavelength by varying the Br-DMA+ ligand concentrations from 0.02 M to 0.28 M with incorporation of PEA+ co-ligands. b,c, Photoluminescence spectra of se-epitaxy films with photoluminescence peak at 631 nm (b) and 645 nm (c) plotting in linear scale (light dashed lines) and log scale (dark solid lines).
