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 |
Fluorescene | 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% (1H NMR) |
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 for OLED devices page.
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 sheet
Pricing
Grade | Order Code | Quantity | Price |
Sublimed (>99.0% purity) | M2104A1 | 250 mg | £269.00 |
Sublimed (>99.0% purity) | M2104A1 | 500 mg | £439.00 |
Sublimed (>99.0% purity) | M2104A1 | 1 g | £691.00 |
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 technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.