Ir(dmpq)2(acac)

Order Code: M801
MSDS sheet

Price

(excluding Taxes)

£270.90


General Information

CAS number 1056874-46-4
Chemical formula C39H35IrN2O2
Molecular weight 755.94 g/mol 
Absorption λmax 434 nm (in CH2Cl2) [1]
Fluorescence λem 594 nm (in CH2Cl2)
HOMO/LUMO HOMO = 5.31 eV, LUMO = 3.26 eV [2]
Synonyms
  • Bis(2-(3,5-dimethylphenyl)quinoline-C2,N')(acetylacetonato)iridium(III)
  • Ir(mpq)2(acac)
  • Ir(mphq)2(acac)
Classification / Family Red dopant material, Organic Light-Emitting Diodes (OLEDs), Organic electronics

 

Product Details

Purity >99.8% (sublimed*)
Melting point n.a.
Colour Dark-red powder/crystals

*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

chemical structure of Ir(dmpq)2(acac)Chemical Structure of Bis(2-(3,5-dimethylphenyl)quinoline-C2,N')(acetylacetonato)iridium(III), Ir(dmpq)2(acac), CAS No. 1056874-46-4; Chemical Formula C39H35IrN2O2.

 

Applications

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.

 

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  red
Max. Current Efficiency 20.3 cd/A
Max. Power Efficiency 23.9 lm W1  
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  orange
Max. EQE 25.4%
Max. Power Efficiency 49.5 lm W1  
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  orange
Max. EQE 22.8%
Max. Power Efficiency 70.1 lm W1  
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  white
EQE@ 3 mA/cm2 19.0%
Power Efficiency@ 100 cd/m2 32.1 lm W1
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  red
Max. EQE 27.6%

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

 

Characterisation

HPLC trace Ir(dmpq)2(acac)
Bis(2-(3,5-dimethylphenyl)quinoline-C2,N')(acetylacetonato)iridium(III), Ir(dmpq)2(acac).

 

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.