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Product Code M2121A1
Price £309.00 ex. VAT

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 is normally used as a blue dopant material in TADF-OLED devices.

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.

Chemical Structure

dmac-dps chemical structure
Chemical structure of DMAC-DPS

Device Structure(s)

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.


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2121A1 250 mg £309.00
Sublimed (>99.0% purity) M2121A1 500 mg £528.00
Sublimed (>99.0% purity) M2121A1 1 g £841.00

MSDS Documentation


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.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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