Order Code: M2121A1
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 Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2121A1 100 mg £299.8
Sublimed (>99.0% purity) M2121A1 250 mg £509.7
Sublimed (>99.0% purity) M2121A1 500 mg £821.5

General Information

CAS number 1477512-32-5
Full name 10,10′-(4,4′-Sulfonylbis(4,1-phenylene))bis(9,9-dimethyl-9,10-dihydroacridine
Chemical formula C42H36N2O2S
Molecular weight 632.81 g/mol
Absorption λmax 286 nm in Toluene
PL λem 469 nm in Toluene
HOMO/LUMO HOMO = 5.92 eV, LUMO = 2.92 eV; T1=2.91 eV[1]
Synonyms DMAC-DPS
Classification / Family Acridine derivatives, Blue emitter, TADF blue host materials, Phosphorescent organic light-emitting devices (PHOLEDs), Sublimed materials

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point > 250 °C (0.5% weight loss)
Appearance Pale yellow 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.


dmac-dps chemical structure
Chemical structure of DMAC-DPS; CAS No. 1477512-32-5.



DMAC-DPS is great for applications in TADF-OLED devices, thanks to its rather broad blue emission nature with a full width at half-maximum of ≈ 80 nm, short lived excited-state (≈3.0 µs in solid films), bipolar charge-transporting capability, and high photoluminescence quantum yields (PLQYs).

PLQYs of blue-emitting DMAC–DPS can be increased from 0.80 to 0.90 by changing the host from mCP to bis(2-(diphenylphosphino)phenyl)ether oxide (DPEPO).

DMAC-DPS can be used either as a deep blue emitter, or as a blue dopant material in TADF-OLED devices.


Device structure ITO/HATCN (7 nm)/ TAPC (40 nm)/DCDPA (10 nm)/ CzCbPy: 20 wt% DMAC-DPS (25 nm)/TSPO1 (5 nm)/TPBi (30 nm)/LiF (1.5 nm)/Al (100 nm) [1]
Colour Blue blue
Max Current Efficiency 35.0 cd/A 
Max EQE 22.9%
Max. Luminance 8, 035 cd/m2
Device structure ITO/a-NPD (30 nm)/TCTA (20 nm)/CzSi (10 nm)/DMAC–DPS:DPEPO (20 nm)/DPEPO (10 nm)/TPBI (30 nm)/LiF (1 nm)/Al [2]
Colour Blue blue
Max EQE 19.5%
Device structure ITO (180 nm)/ HATCN (10 nm)/ TCTA: 20% HATCN (50 nm)/TCTA (20 nm)/mCP (10 nm)/DMAC-DPS (20 nm)/DPEPO (10 nm)/ BmPyPB:3% Li2CO3 (35 nm)/ Li2CO3(1 nm)/Al (100 nm) [3]
Colour Blue blue
Max Current Efficiency 32.3 cd/A 
Max EQE 16.6%
Max. Power Efficiency 32.8 lm W-1
Device structure ITO (180 nm)/ HATCN (10 nm)/ TCTA: 20% HATCN (50 nm)/TCTA (20 nm)/mCP (10 nm)/DPEPO:10% DMAC-DPS (20 nm)/DPEPO (10 nm)/ BmPyPB:3% Li2CO3 (35 nm)/ Li2CO3(1 nm)/Al (100 nm) [3]
Colour Blue blue
Max Current Efficiency 40.3 cd/A 
Max EQE 20.7%
Max. Power Efficiency 34.3 lm W-1
Device structure ITO/MoO3 (6 nm)/NPB (70 nm)/mCP (5 nm)/DPDPO2A*:DMAC-DPS (10% wt 20 nm)/DPDPO2A* (5 nm)/BPhen (30 nm)/LiF (1 nm)/Al [4]
Colour Blue blue
Max Current Efficiency 42.1 cd/A 
Max EQE 22.5%
Max Luminescence 14,626 cd/m2
Max. Power Efficiency 52.9 lm W-1
*For chemical structure information, please refer to the cited references.


Literature and Reviews

  1. Multi-carbazole encapsulation as a simple strategy for the construction of solution-processed, non-doped thermally activated delayed fluorescence emitters, J. Luo et al., J. Mater. Chem. C, 4, 2442-2446 (2016); DOI: 10.1039/C6TC00418K.
  2. 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.
  3. High-Performance Hybrid White Organic Light-Emitting Diodes with Superior Effi ciency/Color Rendering Index/Color Stability and Low Efficiency Roll-Off Based on a Blue Thermally Activated Delayed Fluorescent Emitter, Z. Wu et al., Adv. Funct. Mater., 26, 3306–3313 (2016); DOI: 10.1002/adfm.201505602.
  4. A Phosphanthrene Oxide Host with Close Sphere Packing for Ultralow-Voltage-Driven Efficient Blue Thermally Activated Delayed Fluorescence Diodes, H. Yang et al., Adv. Mater., 29, 1700553 (2017); DOI: 10.1002/adma.201700553.