Fig. 5: Device performance of PLEDs based on PEODPF spherulite and film.
From: Ultralong-range exciton transport in submillimeter-scale spherulite film of π-conjugated polymers
a Configuration structure of PLEDs and optical image of spherulite emitting layer (top: Bright field, bottom: Polarized light). b Electroluminescence (EL) spectra of PLEDs based on film (green) and spherulite (blue) under high current density (~300 mA cm−2) and corresponding CIE chromaticity coordinates. c Angle-dependent EL spectra of Film and Spherulite-based PLEDs. d Angular distribution of emission intensity follows the Lambertian profile. e External quantum efficiency (EQE) versus current density curves. f Current density versus brightness statistical chart. Transient electroluminescence spectra of PLEDs based on film (g) and spherulite (h). i Statistical diagram of maximum brightness recorded from different PLEDs (Data were presented as mean values ± s.d., n = 24).
