4CzTPN
CAS Number 1416881-53-2
Dopant Materials, High Purity Sublimed Materials, Semiconducting Molecules, TADF Materials
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4CzTPN, a green dopant material in TADF devices
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4CzTPN, namely 2,3,5,6-tetrakis(carbazol-9-yl)-1,4-dicyanobenzene, is one of the three isomers of 4CzPN and 4CzIPN.
4CzTPN is normally used in thermally activated delayed fluorescence (TADF) device as green dopant materials. When it is compared with 4CzIPN, it has lower photoluminescence quantum efficiency and a shorter lived triplet lifetime due to the fact that 4CzIPN can widely disperse its highest occupied molecular orbital (HOMO) over the donor carbazolyl moieties.
General Information
| CAS number | 1416881-53-2 |
|---|---|
| Full name | 2,3,5,6-tetrakis(carbazol-9-yl)-1,4-dicyanobenzene |
| Chemical formula | C56H32N6 |
| Molecular weight | 788.27 g/mol |
| Absorption | λmax 328, 344, 485 nm in toluene |
| Fluorescence | λem 538 nm in toluene |
| HOMO/LUMO | HOMO = 5.73 eV, LUMO = 2.82 eV; T1=2.15 eV [1] |
| Classification / Family | Carbazole, TADF materials, Green dopant materials, Sublimed materials |
Product Details
| Purity | Sublimed >99.0% (HPLC) |
|---|---|
| Melting point | > 360 °C (lit.) |
| 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.
Chemical Structure
Device Structure(s)
| Device structure | ITO/MoO3 (6 nm)/NPB (70 nm)/mCP (5 nm)/SFXSPO*:4CzTPN (20 nm, 5%wt.)/SFXSPO (5 nm)/TPBi (30 nm)/LiF (1 nm)/Al |
|---|---|
| Colour | Green 
|
| Max. Current Efficiency | 62.9 cd/A |
| Max. EQE | 19.6% |
| Max. Power Efficiency | 54.9 Im/W |
| Device structure | ITO/MoO3 (6 nm)/NPB (70 nm)/mCP (5 nm)/mCP:4CzTPN (20 nm, 5%wt.)/SFXSPO* (5 nm)/TPBi (30 nm)/LiF (1 nm)/Al |
|---|---|
| Colour | Green
|
| Max. Current Efficiency | 36.4cd/A |
| Max. EQE | 11.4% |
| Max. Power Efficiency | 32.7 Im/W |
*For chemical structure information, please refer to the cited references.
MSDS Documentation
4CzTPN MSDS sheetPricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99.0% purity) | M2214A1 | 250 mg | £350 |
| Sublimed (>99.0% purity) | M2214A1 | 500 mg | £580 |
| Sublimed (>99.0% purity) | M2214A1 | 1 g | £950 |
Literature and Reviews
- Electrogenerated Chemiluminescence of Donor–Acceptor Molecules with Thermally Activated Delayed Fluorescence, R. Ishimatsu et al., Angew. Chem., 53 (27), 6993-6996 (2014); doi: 10.1002/anie.201402615.10.1002/adma.200802546.
- A Significantly Twisted Spirocyclic Phosphine Oxide as a Universal Host for High‐Efficiency Full‐Color Thermally Activated Delayed Fluorescence Diodes, J. Li et al., Adv. Mater., 28 (16), 3122-3130 (2016); DOI: 10.1002/adma.201506286.
- Highly efficient organic light-emitting diodes from delayed fluorescence, H. Uoyama et al., Nature 492, 234–238 (2012); doi.org/10.1038/nature11687.
To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.