TDBA-Ac
CAS Number 2378498-82-7
Blue Dopant Materials, High Purity Sublimed Materials, Materials, MR-TADF Materials, OLED Materials, Semiconducting Molecules,
Highly Efficient MR-TADF Deep-blue Emitter
High purity D-A type MR-TADF material, sublimed ≥99%
Specifications | MSDS | Literature and Reviews
TDBA–Ac is a multiple-resonance thermally activated delayed fluorescence (MR-TADF) deep-blue emitter featuring a small singlet–triplet energy gap (ΔEST) of 0.06 eV and a short delayed fluorescence lifetime (τd) of 900 ns. TDBA–Ac has a rigid oxygen-bridged cyclized triarylboron-based core unit, 2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene (TDBA) and an electron-donating 9,9-dimethyl-9,10-dihydroacridine moiety attached to the TDBA core. TDBA is known as a good acceptor for its suitable triplet energy level, good electron transport ability, and rigid planar geometrical configuration enabling low energy loss of excitons and excellent color purity because of its narrow full-width at half-maximum (FWHM) emission.
20 wt.%-doped film of TDBA–Ac in DBFPO host shows high photoluminescence quantum yield (PLQY) of 93%. TADF-OLED device based on TDBA–Ac dopant exhibits a high external quantum efficiency of 21.50% with deep-blue colour coordinates of (0.15, 0.06).
General Information
| CAS Number | 2378498-82-7 |
|---|---|
| Chemical Formula | C41H40BNO2 |
| Molecular Weight | 589.57 g/mol |
| Absorption | λmax 283, 381 nm (in Toluene) |
| Photoluminescence | λem 458 nm (in Toluene) |
| HOMO/LUMO | HOMO = - 5.6 eV, LUMO = - 2.6 eV |
| Synonyms | 10-(2,12-Di-tert-butyl-5,9-dioxa-13b-boranaphtho[3,2,1-de]-anthracen-7-yl)-9,9-dimethyl-9,10-dihydroacridine |
| Classification or Family | 5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene (DOBNA) derivative, MR-TADF deep-blue emitter, Sublimed materials |
Product Details
| Purity | Sublimed (≥99%) |
|---|---|
| Melting point | DSC: Tg = 202.3 °C |
| Appearance | White to light-yellow to yellow powder/crystals |
Chemical Structure
MSDS Documentation
TDBA-Ac MSDS SheetLiterature and Reviews
- D. Ahn et al. (2019); Highly efficient blue thermally activated delayed fluorescence emitters based on symmetrical and rigid oxygen-bridged boron acceptors, Nat. Photonics 13, 540–546; DOI: 10.1038/s41566-019-0415-5.
- S. Kothavale et al. (2020); Three- and Four-Coordinate, Boron-Based, Thermally Activated Delayed Fluorescent Emitters, Adv. Optical Mater., 2000922; DOI: 10.1002/adom.202000922.
- X. Meng et al. (2022); Highly Efficient Blue Thermally Activated Delayed Fluorescence Emitters Based on Multi-Donor Modified Oxygen-Bridged Boron Acceptor, Molecules, 27, 4048; DOI: 10.3390/molecules27134048.