Extended Data Fig. 1: Optical characterization of PeLED stacks with 2.3 ns Iopt,ns pump source.
From: Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes
PL output from a PeLED stack with a diameter (⌀) of 50 μm at (a) 77 K and (b) 291 K. PL output from a contact-free PeLED stack at (c) 77 K and (d) 291 K.
