mCPCN
CAS Number 1392506-99-8
High Purity Sublimed Materials, Host Materials, Materials, OLED Materials, Semiconducting Molecules, TADF Host Materials,
mCPCN, asymmetric bipolar phosphorescent host material
Used to host blue, green, red and white light emitting TADF-OLED devices.
mCPCN, 9-(3-(9H-Carbazol-9-yl)phenyl)-9H-carbazole-3-carbonitrile, is an asymmetric bipolar and high-triplet-energy (ET = 3.03 eV) phosphorescent host material which could be used for hosting blue, green, red and white light emitting TADF-OLED devices.
The incorporation of the simple and small CN group can greatly improve film morphology and device thermal stabilities. Compared to mCP, CN group attached to the 3-position of the carbazole unit in mCPCN is believed to increases the electron affinity to achieve a rather balanced hole–electron injection and transport properties while not altering electronic transition energies and maintaining a high triplet energy.
mCPCN from Ossila was used in the high-impact paper (IF 29.4), Single-Layer Organic Light-Emitting Diode with Trap-Free Host Beats Power Efficiency and Lifetime of Multilayer Devices,O. Sachnik et al., Adv. Mater., 36 (16), 2311892 (2024); DOI: 10.1002/adma.202311892.
General Information
| CAS number | 1392506-99-8 |
|---|---|
| Chemical formula | C31H19N3 |
| Molecular weight | 433.5 g/mol |
| Absorption | λmax 326, 339 nm (in DCM) |
| Fluorescence | λem 348, 365 nm (in DCM) |
| HOMO/LUMO | HOMO = 5.80 eV, LUMO = 2.24 eV; ET = 3.03 eV [1] |
| Full name | 9-(3-(9H-Carbazol-9-yl)phenyl)-9H-carbazole-3-carbonitrile |
| Synonyms | mCP-CN |
| Classification / Family | Carbazole derivatives, Hole transporting materials, Phosphorescent host materials, OLEDs, TADF materials, Organic electronics |
Product Details
| Purity | Sublimed* >99.0% |
|---|---|
| Melting point | Tm = 222 °C (lit.), Td = 313 °C (5% weight loss), Tg = 97 °C |
| Colour | White Powder |
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.
Chemical Structure
Device Structure(s)
| Device structure | ITO/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt% of FIrpic (20 nm)/DPPS (5 nm)/3TPYMB (45 nm)/LiF (0.5 nm)/Al (150 nm) [1] |
|---|---|
| Colour | Blue 
|
| Max. Current Efficiency | 58.7 cd/A |
| Max. EQE | 26.4% |
| Max. Power Efficiency | 57.6 lm W−1 |
| Device structure | ITO/PEDOT:PSS (70 nm)/TAPC (15 nm)/mCP (5 nm)/mCPCN:DMAC‐TRZ 8 wt.% (20 nm)/DPPS (5 nm)/3TPYMB (45 nm)/LiF (0.5 nm)/Al (150 nm) [2] |
|---|---|
| Colour | Green 
|
| Max. Current Efficiency | 66.8 cd/A |
| Max. EQE | 26.5% |
| Max. Power Efficiency | 65.6 lm W−1 |
| Device structure | ITO/MoO3 (1 nm)/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt % of FIrpic (20 nm)/3TPYMB (50 nm)/LiF (1 nm)/Al (150 nm) [3] |
|---|---|
| Colour | Blue
|
| Max. Current Efficiency | 73.4 cd/A |
| Max. EQE | 30.6% |
| Max. Power Efficiency | 67.8 lm W−1 |
| Device structure | ITO/MoO3 (1 nm)/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt % of MS2 (20 nm)/3TPYMB (50 nm)/LiF (1 nm)/Al (150 nm) [3] |
|---|---|
| Colour | Blue
|
| Max. Current Efficiency | 79.4 cd/A |
| Max. EQE | 30.1% |
| Max. Power Efficiency | 69.3 lm W−1 |
| Device structure | ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 1m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4] |
|---|---|
| Colour | Blue
|
| Max. Current Efficiency | 69.5 cd/A |
| Max. EQE | 27% |
| Max. Power Efficiency | 68.2 lm W−1 |
| Device structure | ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 2m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4] |
|---|---|
| Colour | Bluish-Green 
|
| Max. Current Efficiency | 100 cd/A |
| Max. EQE | 30% |
| Max. Power Efficiency | 92 lm W−1 |
| Device structure | ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 3m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4] |
|---|---|
| Colour | Green
|
| Max. Current Efficiency | 110.8 cd/A |
| Max. EQE | 31.4% |
| Max. Power Efficiency | 108.7 lm W−1 |
Pricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99%) | M2272A1 | 100 mg | £230 |
| Sublimed (>99%) | M2272A1 | 250 mg | £460 |
| Sublimed (>99%) | M2272A1 | 500 mg | £800 |
| Sublimed (>99%) | M2272A1 | 1 g | £1450 |
MSDS Documentation
mCPCN MSDS sheetLiterature and Reviews
- Incorporation of a CN group into mCP: a new bipolar host material for highly efficient blue and white electrophosphorescent devices, M-S. Lin et al., J. Mater. Chem., 22, 16114 (2012); DOI: 10.1039/C2JM32717A.
- Versatile Thermally Activated Delayed Fluorescence Emitter for Both Highly Efficient Doped and Non-Doped Organic Light Emitting Devices, W-L. Tsai et al., Chem. Commun., 51, 13662-13665 (2015); DOI: 10.1039/C5CC05022G.
- Anomalously Long-Lasting Blue PhOLED Featuring Phenyl-Pyrimidine Cyclometalated Iridium Emitter, M. Sarma et al., Chem., 3 (3), 461-476 (2017); DOI: 10.1016/j.chempr.2017.08.001.