Fig. 4: Performance of vacuum-deposited PeLEDs and large area perovskite films. | Light: Science & Applications

Fig. 4: Performance of vacuum-deposited PeLEDs and large area perovskite films.

From: Fluorine-modified passivator for efficient vacuum-deposited pure-red perovskite light-emitting diodes

Fig. 4

a Energy levels of the PeLEDs. b Current density (J) and luminance (L) versus voltage (V) curves of the PeLEDs. c EQE versus current density curves of the PeLEDs. d EL spectra of the 2-F-TPPO incorporated PeLED. e Summary of EQE values reported for vacuum deposited red PeLEDs. f Comparison of the CIE coordinates of EL for the 2-F-TPPO incorporated PeLED with the NTSC and Rec. 2020 standards. g PL image of the 90 cm2 perovskite film fabricated by vacuum deposition. h, i Distribution of PL emission wavelengths (h) and FWHM distribution (i) of the large area perovskite film, each test point is >0.8 cm apart

Back to article page