ACRSA
CAS Number 1206626-95-0
Dopant Materials, High Purity Sublimed Materials, Materials, Semiconducting Molecules, TADF Materials
ACRSA, efficient TADF material
Blue-greenish emitter available online for priority dispatch
10-phenyl-10H,10′H-spiro[acridine-9,9′-anthracen]-10′-one (ACRSA) is one of the few spiro compounds known to exhibit efficient thermally activated delayed fluorescence (TADF). Its bichromophoric structure consists of a weakly-coupled acridine moiety as an electron-donating unit and an anthracenone moiety as an electro-accepting group. These are covalently linked by a spiro-junction in such a way that the respective π systems are orthogonal.
ACRSA is also known as an aromatic ketone-derived blue-greenish emitter with a relatively small ΔEST of 0.03 eV.
General Information
CAS number | 1206626-95-0 |
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Chemical formula | C32H21NO |
Molecular weight | 435.52 g/mol |
Absorption* | λmax 430 nm |
Fluorescence | λem 490 nm |
HOMO/LUMO | ΔEST = 0.03 eV (ES1 = 2.55 eV, ET1 = 2.52 eV) [1] |
Synonyms | 10-phenyl-10H,10′H-spiro[acridine-9,9′-anthracen]-10′-one |
Classification / Family | Acridine derivatives, Greenish blue emitter, Light-emitting diodes, Organic electronics, TADF materials, Sublimed materials. |
* Measurable with an optical spectrometer, see our spectrometer application notes.
Product Details
Purity | Sublimed >99.0% (HPLC) |
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Melting point | TGA: >250 °C (0.5% weight loss) |
Appearance | Off-white crystals/powder |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.
Chemical Structure
Device Structure(s)
Device structure | ITO/a-NPD (40 nm)/mCP (10 nm)/20 wt% ACRSA:DPEPO (15 nm)/DPEPO (3.5 nm)/TPBi (41.5 nm)/LiF (0.8 nm)/Al (80 nm) [1] |
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Colour | Bluish-Green |
Max EQE | 16.4% |
Max. Photo-luminescence | 81% |
Device structure | ITO/a-NPB (35 nm)/mCP (10 nm)/1 wt%-TBPe: 15wt%-ACRSA: DPEPO (15 nm)/DPEPO (8 nm)/TPBi (57 nm)/LiF (0.8 nm)/Al (100 nm) [2] |
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Colour | Blue |
Max Current Efficiency | 27 cd/A |
Max EQE | 13.4% |
Max. Power Efficiency | 18 lm W-1 |
*For chemical structure information, please refer to the cited references.
Pricing
Grade | Order Code | Quantity | Price |
---|---|---|---|
Sublimed (>99.0% purity) | M2118A1 | 250 mg | £240 |
Sublimed (>99.0% purity) | M2118A1 | 500 mg | £400 |
Sublimed (>99.0% purity) | M2118A1 | 1 g | £680 |
MSDS Documentation
Literature and Reviews
- A highly luminescent spiro-anthracenone-based organic light-emitting diode exhibiting thermally activated delayed fluorescence, K. Nasu et al., Chem. Comm. 49, 10385 (2013); DIO: 10.1039/C3CC44179B.
- High-efficiency organic light-emitting diodes with fluorescent emitters, H. Nakanotani et al., Nat. Commun., 5:4016 (2014); DOI: 10.1038/ncomms5016.
- Climbing up the Ladder: Intermediate Triplet States Promote the Reverse Intersystem Crossing in the Efficient TADF Emitter ACRSA, I. Lyskov et al., J. Phys. Chem. C, 121, 21145−21153 (2017); DOI: 10.1021/acs.jpcc.7b06187.