Highly Efficient White Organic Light-Emitting Diodes with Controllable Excitons Behavior by a Mixed Interlayer between Fluorescence Blue and Phosphorescence Yellow-Emitting Layers
Figure 5
(a)–(e) Normalized EL spectra of HWOLEDs with different current density. Each inset shows the corresponding CIE coordinates with the same coordinate scale of ΔCIE (0.1, 0.1). The arrows indicate the EL spectral and CIE color coordinates varying with increasing current density from 0.2 to 40 mA/cm2.
