Fig. 5: Characteristics of fabricated TADF-based OLED devices using ν-DABNA-M and ν-DABNA-M-B-Mes as an emitter.

a Device structure with the estimated energy levels of each component in eV. b Normalized EL spectra of the devices in operation. Inset: Electroluminescence, FWHM and the images of the fabricated devices. c Commission Internationale d’Éclairage (CIE) (x,y) coordinates. d Current density (solid) and luminance (dashed) vs. driving voltage. e Current efficiency (solid) and Power efficiency (dashed) vs. luminance. f External quantum efficiency (EQE) vs. luminance.