Extended Data Fig. 8: Histogram of maximum EQE values and operating stability of mixed-halide MAPb(IxBr1−x)3 NC-LEDs.
From: Ligand-engineered bandgap stability in mixed-halide perovskite LEDs
a, Histogram of maximum EQE values for E+G-treated NC-LEDs, collected from 25 devices. b, Operational stability of E+G-treated NC-LEDs measured in air at a constant current of 0.1 mA cm−2 (initial luminance (L0) = 22 cd m−2), 1 mA cm−2 (L0 = 141 cd m−2) and 10 mA cm−2 (L0 = 585 cd m−2). c–f, Electroluminescence spectra of NCs-LEDs with neat (c, e) and E+G ligand-treated (d, f) nanocrystal layers at a different lifetimes and with constant current densities of 1 mA cm−2 (c, d) and 10 mA cm−2 (e, f).
