CAS Number 200052-70-6
DCJTB, a dicyanomethylene-4H-pyran (DCM) derivative, is one of the most promising dopant materials. It has been widely used in red and white OLEDs.
With four methyl bulky substituents on the julolidine moiety, and tert-butyl group on the pyran moiety of DCM backbone structure, DCJTB can efficiently prevent concentration quenching between the emitting materials, which leads to improved device electroluminescence efficiencies.
DCJTB has also been used as an interface material between the dye and acceptor in small molecule organic heterojunction solar cells, retarding the charge recombination between the donor and the acceptor.
| CAS number | 200052-70-6 |
|---|---|
| Full name | 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran |
| Chemical formula | C30H35N3O |
| Molecular weight | 453.62 g/mol |
| Absorption* | λmax 502 nm in THF |
| Fluorescence | λmax 602 nm in THF |
| HOMO/LUMO | HOMO = 5.4 eV, LUMO = 3.2 eV [1] |
| Synonyms |
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| Classification / Family | Red dopant materials, OLED red emitters, TADF materials. |
* Measurable with an optical spectrometer
| Purity | Unsublimed > 98.0% (HPLC) |
|---|---|
| Melting point | n/a |
| Appearance | Deep red crystals/powder |
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