Extended Data Fig. 5: Angle-dependent EL of PeLEDs.
From: Electrically driven lasing from a dual-cavity perovskite device
a-b, Angle-resolved EL spectra of (a) a microcavity PeLED and (b) a standard PeLED. c-d, EL spectra measured at 0°, 10°, 20°, 30°, and 40° from the surface normal for (c) a microcavity PeLED and (d) a standard PeLED.
