CAS Number 1131007-94-7
FATPA, namely 4,4,8,8,12,12-Hexa-p-tolyl-4H-8H-12H-12C-aza-dibenzo[cd,mn]pyrene, is a fully diarylmethylene-bridged triphenylamine (TPA) derivative with six methylphenyl side arms. FATPA has an almost planar triphenylamine core with nitrogen sitting right in the centre of carbon and hydrogen structure. With a Tg of 178 °C, FATPA exhibits excellent thermal and morphological stability.
Green phosphorescent OLED device with the novel FATPA as host material and Ir(ppy)3 as triplet emitter shows a maximum current efficiency of 83.5 cd/A and a maximum power efficiency of 71.4 lm/W [1]
| CAS number | 1131007-94-7 |
|---|---|
| Chemical formula | C63H51N |
| Molecular weight | 822.09 g/mol |
| Absorption | λmax 311 nm (Toluene) |
| Photoluminescence | λem 375 nm (Toluene) |
| HOMO/LUMO | HOMO = 5.22 eV, LUMO = 1.62 eV; ET = 2.78 eV [1] |
| Chemical name | 4,4,8,8,12,12-Hexa-p-tolyl-4H-8H-12H-12C-aza-dibenzo[cd,mn]pyrene |
| Synonyms | 4,4,8,8,12,12-Hexakis(4-methylphenyl)-4H,8H,12H-benzo[1,9]quinolizino[3,4,5,6,7-defg]acridine |
| Classification / Family | Triphenylamine derivatives, Phosphorescent host materials, Sublimed materials, Semiconducting small molecules |
| Purity | Sublimed >99.0% (HPLC) |
|---|---|
| Melting point | Tg = 178°C (lit.) |
| Appearance | White 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 FATPA, CAS 1036404-84-8
| Device structure | ITO/MoO3 (10 nm)/NPB (80 nm)/mCP (5 nm)/FATPA:Ir(ppy)3 (20 nm)/TAZ (40 nm)/LiF (1 nm)/Al (100 nm) [1] |
|---|---|
| Colour |
 Green
|
| Max. Current Efficiency | 83.5 cd/A |
| Max. EQE | 23.4% |
| Max. Power Efficiency | 71.4 Im/W |
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