Order Code: M2122A1
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 Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2122A1 250 mg £270.00
Sublimed (>99.0% purity) M2122A1 500 mg £464.00
Sublimed (>99.0% purity) M2122A1 1 g £742.00

General Information

CAS number 1477511-57-1
Full name 10-(4-(4-(10H-Phenoxazin-10-yl)phenylsulfonyl)phenyl)-10H-phenoxazine
Chemical formula C36H24N2O4S
Molecular weight 580.65 g/mol
Absorption n/a
PL λem 507 nm in toluene
HOMO/LUMO HOMO = 5.59 eV, LUMO = 2.79 eV; T1=2.74 eV, 
ΔEST = 0.08 eV [1]
Synonyms DPS-PXZ
Classification / Family Acridine derivatives, TADF green emitter, TADF green host materials, Phosphorescent organic light-emitting devices (PHOLEDs), Sublimed materials

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point TGA > 220 °C (0.5% weight loss)
Appearance Off-white powder/crystals

*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.


pxz-dps chemical structure
Chemical structure of PXZ-DPS; CAS No. 1477511-57-1.



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 [2]
Colour Green  green
Max EQE 17.6%
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) [2]
Colour Green  green
Max EQE 19.3%
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) [2]
Colour Green green
Max EQE 24%
Max. Power Efficiency 71.4 lm W-1

*For chemical structure information, please refer to the cited references.


Literature and Reviews

  1. 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.
  2. 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.
  3. 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.