Ir(dpm)PQ2
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 for OLED devices.
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 | £200.00 |
| Sublimed (>99.0% purity) | M2231A1 | 250 mg | £400.00 |
| Sublimed (>99.0% purity) | M2231A1 | 500 mg | £700.00 |
| Sublimed (>99.0% purity) | M2231A1 | 1 g | £1200.00 |
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.
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.