Ir(dpm)PQ2
CAS Number 713079-03-9
Dopant Materials, High Purity Sublimed Materials, Semiconducting Molecules
Ir(dpm)PQ2, orange to red phosphorescent emitter
High-purity (>99.0%) and available online for priority dispatch
Bis(2-phenylquinoline)(2,2,6,6-tetramethylheptane-3,5-dionate)iridium(III) - Ir(dpm)PQ2, also known as Ir(PQ)2(tmd) is an orange to red phosphorescent emitter. The ligand 2,2,6,6-tetramethylheptane-3,5-dionate corrdinated to the iridium centre is sterically hindered with two bulky tert-butyl groups at both ends.
Ir(dpm)PQ2 is often either used in pure red as a single emitting layer material or in white emitting highly efficient OLED devices for its low lying triplet energy state and greater stability, preventing triplet-triplet annihilation thus leading to higher device efficiencies.
General Information
| CAS number | 713079-03-9 |
|---|---|
| Full name | Bis(2-phenylquinoline)(2,2,6,6-tetramethylheptane-3,5-dionate)iridium(III) |
| Chemical formula | C41H39N2O2Ir |
| Molecular weight | 783.98 g/mol |
| Absorption* | λmax 333 nm in DCM |
| Fluorescence | λem 595 nm in DCM |
| HOMO/LUMO | HOMO 5.10 eV, LUMO 3.10 eV [1] |
| Synonyms | PQ2Ir(dpm), PQ2Ir, Ir(PQ)2(tmd), Bis[2-(2-quinolinyl)phenyl](2,2,6,6-tetramethyl-3,5-heptanedionato)iridium |
| Classification / Family | Iridium Complex, Organic electronics, TADF-OLEDs, Orange to red phosphorescent dopant materials, Sublimed materials. |
* Measurable with an optical spectrometer, see our spectrometer application notes.
Product Details
| Purity | Sublimed* >99.0% (HPLC) |
|---|---|
| Melting point | TGA >290 °C (0.5% weight loss) |
| Appearance | Red powder/crystals |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.
Chemical Structure
Device Structure(s)
| Device structure | ITO/HATCN (5 nm)/NPB (40 nm)/TCTA (5 nm)/BBPI (6 nm)/CBP (3 nm)/CBP:8 wt% Ir(PPy)3 (10 nm)/CBP (3 nm)/BBPI:1.0 wt% PQ2Ir (8 nm)/TPBi (40 nm)/LiF (1 nm)/Al [1] |
|---|---|
| Colour | White 
|
| Max Current Efficiency | 71.4 cd/A |
| Max EQE | 33.5% |
| Max. Power Efficiency | 61.5 lm W-1 |
| Device structure | ITO (130 nm)/TAPC (40 nm)/TCTA (5 nm)/PQ2Ir(dpm) 2 wt % doped CBP (1 nm)/Ir(ppy)3 6 wt % doped CBP (1 nm)/Ir(dbfmi)* 10 wt % doped PO9 (10 nm)/B3PyPB (50 nm)/LiF (0.5 nm)/Al (100 nm) [2] |
|---|---|
| Colour | White
|
| Max. Current Efficiency | 53.7 cd/A |
| Max. EQE | 23.3% |
| Max. Power Efficiency | 55.2 lm W-1 |
| Device structure | ITO/HATCN (10 nm)/NPB (30 nm)/HTM (10 nm)/6 wt% PQ2Ir:BCzPh:SF2-TRZ (25 nm)/T2T (10 nm)/NBPhen (40 nm)/LiF (1 nm)/Al (100 nm), [3] |
|---|---|
| Colour | Red 
|
| Max. Current Efficiency | 33.6 cd/A |
| Max. EQE | 19.8% |
MSDS Documentation
Ir(dpm)PQ2 MSDS sheetPricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99.0% purity) | M2231A1 | 100 mg | £260 |
| Sublimed (>99.0% purity) | M2231A1 | 250 mg | £520 |
| Sublimed (>99.0% purity) | M2231A1 | 500 mg | £950 |
| Sublimed (>99.0% purity) | M2231A1 | 1 g | £1600 |
Literature and Reviews
- Highly efficient single- and multi-emission-layer fluorescent/phosphorescent hybrid white organic light-emitting diodes with ~20% external quantum efficiency, X. Li et al., J. Mater. Chem. C, 3, 9233 (2015); DOI: 10.1039/c5tc02050f.
- High-Efficiency Blue and White Organic Light-Emitting Devices Incorporating a Blue Iridium Carbene Complex, H. Sasabe et al., Adv. Mater., 22, 5003–5007 (2010); DOI: 10.1002/adma.201002254.
- Predicting Operational Stability for Organic Light-Emitting Diodes with Exciplex Cohosts, Z. Wang et al., Adv. Sci., 6, 1802246 (2019); DOI: 10.1002/advs.201802246.