|Molecular weight||580.65 g/mol|
|PL||λem 507 nm in toluene|
|HOMO/LUMO||HOMO = 5.59 eV, LUMO = 2.79 eV; T1=2.74 eV,
ΔEST = 0.08 eV 
|Classification / Family||Acridine derivatives, TADF green emitter, TADF green host materials, Phosphorescent organic light-emitting devices (PHOLEDs), Sublimed materials|
|Purity||Sublimed 99.93% (HPLC)|
|Melting point||TGA > 220 °C (0.5% weight loss)|
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.
10,10′-(sulfonylbis(4,1-phenylene))bis(10H-phenoxazine) (PXZ-DPS), posses a structure of a weak electron-accepting diphenylsulfone and strong electron-donating acridine moieties. It is used as a TADF green emitter or dopant, and has a small ΔEST of less than 0.1 eV, a short lifetime of less than 3.1 µs.
Like DMAC-DPS, PXZ-DPS has high photo-luminescence quantum yields (PLQY) in devices even with the change of host materials. It is an ideal candidate for applications in green TADF-OLED devices with biploar charge-transporting capability.
|Device structure||ITO/a-NPD (30 nm)/TCTA (20 nm)/CzSi (10 nm)/PXZ–DPS:DPEPO (20 nm)/DPEPO (10 nm)/TPBI (30 nm)/LiF (1 nm)/Al |
|Device structure||>ITO/TAPC (30 nm)/TCTA (10 nm)/PXZ-DPS:0.5 mol% PhtBuPAD* (30 nm)/BPBiPA (40 nm)/LiF (0.5 nm)/Al (150 nm) |
|Max. Power Efficiency||48.5 lm W-1|
|Device structure||ITO/TAPC (30 nm)/TCTA (10 nm)/PXZ-DPS:PhCzTRz:0.5 mol% PhtBuPAD* (30 nm)/BPBiPA (40 nm)/LiF (0.5 nm)/Al (150 nm) |
|Max. Power Efficiency||71.4 lm W-1|
*For chemical structure information, please refer to the cited references.
Literature and Reviews
- Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence, Q. Zhang et al., Nat. Photonics, 8, 326–332 (2014); DOI: 10.1038/nphoton.2014.12.
- Blocking Energy-Loss Pathways for Ideal Fluorescent Organic Light-Emitting Diodes with Thermally Activated Delayed Fluorescent Sensitizers, D. Zhang et al., Adv. Mater., 30, 1705250(2018); DOI: 10.1002/adma.201705250.
- Recent progress of green thermally activated delayed fluorescent emitters, Y. Im et al., J. Info. Display, 18:3, 101-117 (2017); DOI: 10.1080/15980316.2017.1333046.