Ir(MDQ)2(acac)

Ir(MDQ)2(acac), phosphorescent emitter employed in OLEDs

Bright and efficient orange-red light emitter

Ir(MDQ)₂(acac) has a 2-methyldibenzo[f,h]quinoxaline ligand that coordinates with the iridium metal center via the formation of Ir-N and Ir-C bonds.

Ir(MDQ)₂(acac) is another family member of iridium complexes, which are the most effective phosphorescent emitters employed in OLEDs. Devices based on Ir(MDQ)₂(acac) emit orange-red light, with a maximum emission of 600-614 nm. OLEDs with Ir(MDQ)₂(acac) as an emitting layer material give great brightness and exceedingly-high external quantum, current, and power efficiencies.

General Information

Product Details

Chemical Structure

Device Structure(s)

Device structure	ITO/MoO3 (3 nm)/TAPC (40 nm)/Ir(MDQ)2(acac) (2 wt%):26DCzPPy (10 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [1]
Colour	Red
Max. Power Efficiency	24.39 lm W−1
Max. Current Efficiency	35.2 cd/A
Max. EQE	12.3%

Device structure	ITO/MoO3 (3 nm)/TAPC (40 nm)/Ir(MDQ)2(acac) (2 wt%):TcTa (10 nm)/Ir(MDQ)2(acac) (2 wt%):26DCzPPy (10 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [1]
Colour	Red
Max. Power Efficiency	40.19 lm W−1
Max. Current Efficiency	44.76 cd/A
Max. EQE	15.5%

Device structure	ITO/HAT-CN (10 nm)/TAPC (45 nm)/TCTA (10 nm)/Ir(MDQ)2(acac) (0.02 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TmPyPb (40 nm)/ Liq (2 nm)/Al (120 nm) [2]
Colour	White
Max. Power Efficiency	46.1 lm W−1
Max. Current Efficiency	45.5 cd/A
Max. EQE	17.6%

Device structure	ITO/HAT-CN (10 nm)/TAPC (45 nm)/TCTA (7 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TCTA (3 nm)/ Ir(MDQ)2(acac) (0.02 nm)/TmPyPb (3 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TmPyPb (37 nm)/Liq (2 nm)/Al (120 nm) [2]
Colour	White
Max. Power Efficiency	43.1 lm W−1
Max. Current Efficiency	44.0 cd/A
Max. EQE	17.2%

Device structure	NPB (50 nm)/Ir(MDQ)2(acac):CBP(5.7%, 30 nm)/T PBI (15 nm)/Alq (35 nm) [3]
Colour	Red
Max. Power Efficiency	13.7 lm W−1
Max. Current Efficiency	26.2 cd/A
Max. EQE	12.4

Device structure	ITO/HAT-CN (10 nm)/SAFDPA (45 nm)/ SAFDPA:Bphen (1:1, w/w):Ir(MDQ)2(acac) (2 wt %, 20 nm)/Bphen (45 nm)/Liq (2 nm)/Al (120 nm) [4]
Colour	Reddish-Orange
Max. Power Efficiency	31.8 lm W−1
Max. Current Efficiency	32.0 cd/A
Max. EQE	10.7%

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

Pricing

MSDS Documentation

Ir(MDQ)2(acac) MSDS sheet

Literature and Reviews

1. High performance red organic electroluminescent devices based on a trivalent iridium complex with stepwise energy levels, Y. Li et al., : RSC Adv., 6, 71282 (2016); DOI: 10.1039/c6ra16517f.
2. Highly Efficient White Organic Light-Emitting Diodes with Ultrathin Emissive Layers and a Spacer-Free Structure, S. Wu et al., Sci. Rep., 6:25821 (2016); DOI: 10.1038/srep25821.
3. New Iridium Complexes as Highly Efficient Orange–Red Emitters in Organic Light‐Emitting Diodes, J. Duan et al., Adv. Mater., 15 (3), 224-228 (2003); doi: 10.1002/adma.200390051.
4. Highly Simplified Reddish Orange Phosphorescent Organic Light-Emitting Diodes Incorporating a Novel Carrier- and Exciton-Confining Spiro-Exciplex-Forming Host for Reduced Efficiency Roll-off, T. Xu et al., ACS Appl. Mater. Interfaces, 9, 2701−2710 (2017); DOI: 10.1021/acsami.6b13077.

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