CAS Number 2055722-93-3
4TCzBN is another family member of carbazolyl benzonitrile derivatives which are widely used in either white or blue highly efficient TADF-OLED devices.
The carbazolyl groups are electron donating and nitrile group is electron withdrawing while the extended tert-butyl units can serve as an encapsulation shell to the luminophore in 4TCzBN. It is believed that the introduction of the tert-butyl units can effectively separate molecules thus reduce the chance of triplet-polaron annihilation (TPA) to greatly improve the device efficiency and stability.
| CAS number | 2055722-93-3 |
|---|---|
| Full name | 2,3,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)benzonitrile |
| Synonyms | 2,3,5,6-Tetrakis[3,6-bis(1,1-dimethylethyl)-9H-carbazol-9-yl]benzonitrile |
| Chemical formula | C87H97N5 |
| Molecular weight | 1212.73 g/mol |
| Absorption | λmax 295 nm, 345 nm and 417 nm in toluene |
| Fluorescence | λem 483 nm in toluene |
| HOMO/LUMO | HOMO = 5.48 eV, LUMO = 2.73 eV, T1 = 2.60 eV [1] |
| Classification / Family | Carbazole, Benzonitrile, TADF materials, Blu dopant materials, Sublimed materials |
| Purity | Sublimed >99.0% (1H NMR) |
|---|---|
| Melting point | Tg = 322 °C (lit.) |
| Appearance | 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.
Chemical Structure of 2,3,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)benzonitrile (4TCzBN), CAS 2055722-93-3.专业代理国外知名镊子品牌
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