Extended Data Fig. 5: Photo-electrical co-excitation of contacted PeLED stacks at 77 K.
From: Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes
a-f, Standalone optical excitation with variable Iopt,ns (black solid lines), photo-electrical spectra at variable Iopt,ns and fixed Vp (dashed), and joint spectra adjusted by subtracting the reference EL signal (coloured solid lines). The Vp (J = 3.5 kA cm−2) was fixed across these measurements, producing the reference EL signal shown in (a) in the absence of optical excitation.
