Bis(2-(3,5-dimethylphenyl)quinoline-C,N)(acetylacetonato)iridium(III), also known as Ir(dmpq)2(acac), is a highly efficient red phosphorescent emitter that is employed as a dopant material in organic light-emitting diodes (OLEDs).

Compared with Ir(phq)₂acac,  Ir(dmpq)₂(acac) has a higher quantum efficiency. The dmpq ligand is methylated version of the phq (2-phenylquinoline) ligand, with methyl substitutions on the phenyl group. It is believed that the higher efficiency is a result of this methylation of the phq ligand.

General Information

Product Details

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.

Chemical Structure

Device Structure(s)

Device structure	ITO/DNTPD (40 nm)/Bebq2:Ir(dmpq)2(acac) (3%, 30 nm)/Bebq2 (20 nm)/LiF (0.5 nm)/Al (100 nm) [1]
Colour	Red
Max. Current Efficiency	20.3 cd/A
Max. Power Efficiency	23.9 lm W−1

Device structure	ITO (150 nm)/TAPC(20 nm)/ TCTA (10 nm)/ TCTA:B3PYMPM* :Ir(ppy)2(acac):Ir(mphq)2(acac) (30 nm, 8 wt%, 0.5 wt%)/ B3PYMPM (45 nm)/ LiF (0.7 nm)/Al (100 nm) [2]
Colour	Orange
Max. EQE	25.4%
Max. Power Efficiency	49.5 lm W−1

Device structure	ITO (150 nm)/TAPC (20 nm)/TCTA (10 nm)/TCTA:B3PYMPM* :Ir(dmpq)2(acac) (5 nm, 3 wt%)/TCTA:B3PYMPM:Ir(ppy)2(acac) (25 nm, 8 wt%)/B3PYMPM (45 nm)/LiF (0.7 nm)/Al (100 nm) [3]
Colour	Orange
Max. EQE	22.8%
Max. Power Efficiency	70.1 lm W−1

Device structure	p-PI (2 mm)/ITO (120 nm)/MoO3 (5nm)/TAPC (50 nm)/TCTA:Ir(dmpq)2(acac) (10 wt%, 6 nm)/TCTA (2 nm)/TCTA:FIrpic (20 wt%, 4 nm)/TPBi (2 nm)/TPBi:Ir(ppy)3 (8 wt% 6 nm)/TPBi (75 nm)/LiF/Al [4]
Colour	White
EQE@ 3 mA/cm2	19.0%
Power Efficiency@ 100 cd/m2	32.1 lm W−1

Device structure	ITO (100 nm)/TAPC (75 nm)/NPB (10 nm)/NPB:B3PYMPM:Ir(mphq)2acac (30 nm, 3.5 mol%)/ B3PYMPM (10 nm)/B3PYMPM:Rb2CO3 (45 nm, 2 wt%)/Al (100 nm)
Colour	Red
Max. EQE	27.6%

*For chemical structure information, please refer to the cited references.

Characterisation

Pricing

MSDS Documentation

Ir(dmpq)2(acac) MSDS sheet

Literature and Reviews

1. Highly Efficient Red Phosphorescent Dopants in Organic Light-Emitting Devices, D. Kim et al., Adv. Mater., 23, 2721–2726 (2011); DOI: 10.1002/adma.201100405.
2. Low Roll-Off and High Effi ciency Orange Organic Light Emitting Diodes with Controlled Co-Doping of Green and Red Phosphorescent Dopants in an Exciplex Forming Co-Host, S. Lee et al., Adv. Funct. Mater., 23, 4105–4110 (2013); DOI: 10.1002/adfm.201300187.
3. High efficiency and non-color-changing orange organic light emitting diodes with red and green emitting layers, S. Lee et al., Org. electronics, Organic 14, 1856–1860 (2013); http://dx.doi.org/10.1016/j.orgel.2013.04.020. 
4. Enhanced Outcoupling in Organic Light-Emitting Diodes via a High-Index Contrast Scattering Layer, T-W. Koh et al., ACS Photonics, 2, 1366−1372 (2015); DOI: 10.1021/acsphotonics.5b00346.
5. Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes, K-H. Kim et al., Nat. commun., 5, 4769; DOI: 10.1038/ncomms5769.

To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.