CAS Number 1980037-96-4
SpiroAC-TRZ (CAS number 1980037-96-4) is designed with a spiroacridine donor covalently linked to a triazine acceptor unit. It functions as a blue-emitting organic semiconductor, exhibiting thermally activated delayed fluorescence (TADF).
SpiroAC-TRZ demonstrates a strong horizontal dipole ratio up to 83% and photoluminescence quantum yield of near 100%. Due to the small singlet-triplet energy gap (ΔEST) of 0.072 eV, the reverse intersystem crossing and related processes readily occur in SpiroAC-TRZ. An OLED device featuring SpiroAC-TRZ shows an extraordinarily high external quantum efficiency of 36.7%, with a current efficiency of 72 cd/A and a power efficiency of 84 lm/W.
As a third-generation OLED emitter, spiroAC-TRZ is also employed in the fabrication of simplified single-layer blue-emitting OLEDs. The emitting layer of SpiroAC-TRZ is situated between ohmic contacts of PEDOT:PSS:PFI anode and Ba/Al cathode. This single-layered OLED exhibits EQE of 27.7% with minimal roll-off, maintaining an EQE of 23% at luminance of 1000 cd/m2.
| CAS Number | 1980037-96-4 |
|---|---|
| Full Name | 10-(4-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenyl)-10H-spiro[acridine-9,9'-fluorene] |
| Chemical Formula | C46H30N4 |
| Molecular Weight | 638.76 g/mol |
| Purity | Sublimed >99% (HPLC) |
| Fluorescence | λmax = 479 nm (toluene) [1] |
| HOMO/LUMO |
HOMO = −5.7 eV LUMO = −3.1 eV [1] |
| Decomposition Temperature | Td = 353 °C [1] |
| Glass Transition Temperature | Tg = 155 °C [1] |
| Processing Solvents | Toluene |
| Appearance | Pale yellow powder |
| Synonyms | SpiroAc-TRZ |
| Classification or Family | Emitting layers, Blue emitter, Dopant materials, Acridines, Triazines, TADF blue emitters, Sublimed materials, TADF OLEDS |
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