Table 2 Device characteristics of single-stack hybrid white OLEDs utilizing DBFPO or DPEPO as a blue host and three different yellow EML positions.
White device | EQE (%) | CIE Color coordinate (x, y) | Turn-on/operating voltage (V) | Power efficiency (lm/W) | CRI | CCT (K) | |
|---|---|---|---|---|---|---|---|
Blue host | Blue/yellow/blue EML thickness (nm) | Max/1000 nit | 1000 nit | 1nit/1000 nit | Max/1000 nit | 1000 nit | 1000 nit |
DBFPO | 5/2.5/22.5 | 24.2/20.6 | 0.394, 0.414 | 2.4/4.3 | 72.9/35.5 | 49 | 3929 |
8/2.5/14.5 | 23.2/19.4 | 0.346 0.367 | 2.4/4.6 | 56.7 /30.7 | 62 | 5446 | |
11/2.5/11.5 | 22.0/17.9 | 0.283, 0.300 | 2.4/4.7 | 56.7 /22.2 | 72 | 8997 | |
DPEPO | 5/2.5/22.5 | 21.8/19.0 | 0.329, 0.341 | 2.6/5.2 | 54.5 /24.3 | 62 | 5722 |
8/2.5/14.5 | 23.1/19.4 | 0.324, 0.337 | 2.6/5.3 | 59.0 /24.6 | 63 | 5893 | |
11/2.5/11.5 | 22.4/19.7 | 0.316, 0.326 | 2.6/5.3 | 49.0 /24.2 | 66 | 6360 | |
