Ac-CNP
CAS Number 1883400-34-7
Dopant Materials, High Purity Sublimed Materials, Materials, OLED Materials, Red Dopant Materials, Semiconducting Molecules,
AC-CNP, TADF yellow to orange dopant material
Available in sublimed grade for highly efficient TADF-OLED devices
Ac-CNP, 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile is a TADF yellow to orange emitter with a simple structure of a low-rigid two cyano groups attached electron-accepting pyrazine unit and two electron-donating phenyl acridine units. The two phenyl units act as bridges to the donor acridines and acceptor pyrazine-2,3-dicarbonitrile to form a bipolar A-π-D electronic structure.
Ac-CNP has high photoluminescence quantum yield (PLQY) of 67% and Ac-CNP based devices with mCP as the TADF host showed a high external quantum efficiency (EQE) of 13.3%.
General Information
| CAS Number | 1883400-34-7 |
| Chemical Formula | C48H36N4 |
| Molecular Weight | 696.84 g/mol |
| Absorption | λmax 282 nm, 436 nm in toluene |
| Fluorescence | λmax 620 nm in toluene |
| HOMO/LUMO | HOMO = 5.40 eV, LUMO = 3.10 eV [1] |
| Full Name | 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile |
| Synonyms | 5,6-Bis[4-(9,9-dimethyl-9,10-dihydroacridine)pheny]-2,3-dicyano-pyrazine |
| Classification / Family | Acridine derivatives, Pyrazines, TADF yellow to orange dopant, Sublimed small molecules |
Chemical Structure
Product Details
| Purity | Sublimed* >98.0% (HPLC) |
| Melting Point | N/A |
| Appearance | Orange powder/crystals |
*Sublimation is a technique used to obtain ultra-pure grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.
Device Structure
| Device Structure | ITO (110 nm)/NPD (40 nm)/mCP (10 nm)/Ac-CNP:mCP (6wt%, 20 nm)/PPF (10 nm)/TPBi (30 nm)/LiF (0.8 nm)/Al (100 nm) [1] |
| Colour |
 Orange Red CIE (0.47, 0.51) |
| Max. EQE | 13.3% |
| Max. Current Efficiency | 38.1 cd/A |
| Max. Power Efficiency | 26.1 Im/W |
MSDS Documentation
Ac-CNP MSDS sheetPricing
| Grade | Order Code | Quantity | Price |
| Sublimed (>99.0% purity) | M2389A1 | 100 mg | £380 |
| Sublimed (>99.0% purity) | M2389A1 | 250 mg | £760 |
| Sublimed (>99.0% purity) | M2389A1 | 500 mg | £1300 |
| Sublimed (>99.0% purity) | M2389A1 | 1 g | £2200 |
Literature and Reviews
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Full-Color Delayed Fluorescence Materials Based on Wedge-Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance, I. Park et al., Adv. Funct. Mater., 26, 1813−1821 (2016); 10.1002/adfm.201505106.
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Recent Progress of Highly Efficient Red and Near-Infrared Thermally Activated Delayed Fluorescent Emitters, J. Kim et al., Adv. Opt. Mater., 6 (18), 1800255 (2018); DOI: 10.1002/adom.201800255.
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Molecular Design Strategy for Orange Red Thermally Activated Delayed Fluorescence Emitters in Organic Light-Emitting Diodes (OLEDs), K. Naveen et al., Chem. Eur. J., 28 (12), e202103532 (2022); DOI: 10.1002/chem.202103532.