Table 3.
Device characteristics of the vacuum-deposited TADF-sensitized OLEDs
| Device | Vona (V) | Lmaxb (cd m−2) | λmaxc (nm) | CIEd (x, y) | EQEmax/100/1000e (%) | Δroll-offf (%) | CEg (cd A−1) | PEh (lm W−1) | LT90i (h) | LT50i (h) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3.4 | 10399 | 462 | 0.13, 0.10 | 5.1/4.2/3.4 | 33 | 4.6 | 4.1 | - | 19.7 |
| 2 | 3.4 | 10689 | 461 | 0.13, 0.09 | 5.0/4.2/3.4 | 32 | 4.3 | 3.8 | - | 27.3 |
| 3 | 2.5 | 31763 | 572 | 0.50, 0.50 | 19.5/14.2/3.8 | 81 | 70.4 | 80.2 | 12.3 | - |
| 4 | 2.6 | 30854 | 572 | 0.49, 0.50 | 20.9/12.8/3.4 | 84 | 75.1 | 82.9 | 15.4 | - |
| 5 | 2.6 | 29697 | 571 | 0.50, 0.50 | 16.5/13.1/3.5 | 79 | 59.9 | 64.8 | 19.1 | - |
| 6 | 2.5 | 30426 | 572 | 0.50, 0.50 | 18.5/15.1/3.6 | 81 | 67.7 | 76.9 | 23.4 | - |
| 7 | 2.7 | 22658 | 572 | 0.50, 0.50 | 15.2/10.2/2.2 | 86 | 56.3 | 58.0 | 1.1 | - |
aVon represents turn-on voltage.
bLmax represents maximum luminance.
cλmax represents peak maximum.
dCIE coordinates are taken at luminance of 100 cd m−2.
eEQEmax represents maximum external quantum efficiency.
fEfficiency roll-off measured by ∆roll-off = 1 − (EQE1000/EQEmax).
gCE represents maximum current efficiency.
hPE represents maximum power efficiency.
iOperational lifetime projected at 1000 cd m−2.