Table 3. Electroluminescence Properties of Phenoxazine–Pyrimidine TADF Compounds PXZ-PYR, PXZ-muPYR, PXZ-mdPYR, and PXZ-2mPYR.
| compounds | λEL (nm)a | VON (V)b | EQEc | PEMAX (lm/w)d | LMAX (cd/m2)e | CIE (x, y)f |
|---|---|---|---|---|---|---|
| PXZ-PYR | 536 | 3.3 | 27.9/18.0/12.3 | 84.1 | 4214 | (0.35, 0.56) |
| PXZ-muPYR | 529 | 2.7 | 29.1/25.0/20.5 | 74.1 | 22730 | (0.32, 0.55) |
| PXZ-mdPYR | 514 | 2.5 | 27.5/21.0/16.0 | 75.2 | 7702 | (0.27, 0.49) |
| PXZ-2mPYR | 502 | 2.9 | 26.3/16.9/8.9 | 53.3 | 12476 | (0.23, 0.42) |
a
Electroluminescence peak wavelength.
b
Electroluminescence turn-on voltage.
c
External quantum yield. The order of measured values: maximum/at 100 cd/m2/at 1000 cd/m2.
d
Peak values of power efficiency.
e
Peak values of luminance.
f
Commission Internationale de l’Eclairage coordinates recorded at 9 V.