Figure 2
From: Ultra-Bright Near-Infrared Perovskite Light-Emitting Diodes with Reduced Efficiency Roll-off

Normalized electroluminescence (EL) spectra of the devices with 0% (red), 5% (green), 10% (orange) and 15% (blue) of starch, recorded at maximum EQE voltages, the inset is the device architecture (a); Radiance (line) and EQE (line + simbols) vs Current density curves of the best device containing 0% and 5% of starch (b); Maximum EQE and radiance averaged on 16 LED devices as a function of starch concentrations (c); Radiance and Luminance versus current density of selected PeLEDs reported in literature (the numbers correspond to the references) (d)1,3,4,12,13,14,31,32,33,34,35,36,37,38,39.