CAS Number 1036404-84-8
DMPPP has a structure of two pyrene units linked via a dimethylphenyl linker. DMPPP is known as a triplet-triplet annihilation (TTA) energy up-conversion material to effectively regulate exciton utilization.
Normally, DMPPP is used as an effective host material for fluorescent blue devices, exhibiting TTA-type delayed electroluminescence. Unlike TADF-based OLEDs, which generally have low maximum luminance and high roll-off efficiencies, DMPPP host devices provide high luminance without compromising on the efficiency.
DMPPP is also a good blue emitter with a high PLQY of 0.85, a singlet energy level of 3.1 eV and triplet energy level of 2.1 eV.
| CAS number | 1036404-84-8 |
|---|---|
| Full name | 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene |
| Chemical formula | C40H26 |
| Molecular weight | 506.63 g/mol |
| Absorption | λmax 390 nm in Toluene |
| PL | λem 397 nm in DCM |
| HOMO/LUMO | HOMO = 5.26 eV, LUMO = 2.50 eV; S1=2.1 eV, T1=2.1 eV[1] |
| Synonyms | 1-(2,5-dimethyl-4-(1-pyrenyl)phenyl)pyrene |
| Classification / Family | Pyrene derivatives, Blue emitter, Fluorescent host materials, Sublimed materials, triplet-triplet annihilation (TTA) up-conversion |
| Purity | Sublimed >99.0% (HPLC) |
|---|---|
| Melting point | Tg = 137 °C |
| Appearance | Pale 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 Chemical structure of 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene (DMPPP), CAS 1036404-84-8.
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