Order Code: M971MSDS sheet
|Molecular weight||340.37 g/mol|
|Absorption||λmax 294 nm, 510 nm (in THF)|
|Fluorescence||λem 523 nm (in THF)|
|HOMO/LUMO||HOMO = 5.35 eV; LUMU = 3.17 eV |
|Classification / Family||Green dopant materials, OLEDs, Photodetectors, Organic electronics|
|Melting point||286 °C (dec.)(lit.)|
*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.
N,N'-Dimethylquinacridone (DMQA) is a green dopant material used in OLEDs. Highly stable and longer-lifetime OLED devices have been achieved by using DMQA as the dopant to a double host (aminoanthracene and Alq3). It is believed that DMQA can prevent excimer formation, thus prolonging the the lifetime of the devices.
By using DMQA as a green dopant, very high efficiency OLEDs with a luminance of greater than 88,000 cd/m2, EQE of 5.4% and current efficiency of 21.1 cd/A have been achieved. DMQA has also been used in green light photodetectors for practical applications, such as photo sensors and chemical sensors.
|Device structure||ITO/CuPc (15 nm)/NPB (60 nm)/Alq3:0.4 wt.% DMQA (37.5 nm)/Alq (37.5 nm)/MgAg (200 nm) |
|Current Efficiency||6.61 cd/A|
|Lifetime (T1/2)||7,500 hours|
|Device structure||ITO (150 nm)/a-NPB (60 nm)/Alq3: 1 wt.% C545T*:0.75 wt.% DMQA (30 nm)/Alq3 (30 nm)/LiF (0.8 nm)/Al (150 nm) |
|Max. Luminance||84,900 cd/m2|
|Max. Current Efficiency||23.4 cd/A|
|Device structure||(ITO)/2-TNATA (5 nm)/NPB (40 nm)/CBP:6 wt.% Ir(ppy)3:0.5 wt.% DMQA (30 nm)/Bphen (10 nm)/Alq3 (20nm)/LiF (0.5 nm)/Al (100 nm) |
|Max. Current Efficiency||7.08 cd/A|
|Max. Power Efficiency||4.03 lm/W|
|Device structure||ITO (80 nm)/NPB (40 nm)/ADN:0.6 wt.% C545T*:1.2 wt.% DMQA (30 nm)//Alq3 (30 nm)/LiF (1 nm)/Al(100 nm) |
|Luminance @ 50 mA/cm2||4,750 cd/m2|
|Current Efficiency @ 50 mA/cm2||9.5 cd/A|
|Device structure||ITO/NPB (60nm)/ADN:Alq (9:1):0.8 wt.% DMQA (20nm)/BPhen (10nm)/Alq3 (30nm)/LiF (1nm)/Al (200nm)  [@20 mA/cm2: 14.7 cd/A)|
|Current Efficiency @ 20 mA/cm2||14.7 cd/A|
*For chemical structure information please refer to the cited references
Literature and Reviews
- Low dark current small molecule organic photodetectors with selective response to green light, D-S. Leem et al., Appl. Phys. Lett., 103, 043305 (2013); doi: 10.1063/1.4816502 .
- Doped organic electroluminescent devices with improved stability, J. Shi et al., Appl. Phys. Lett., 70, 1665 (1997); doi: 10.1063/1.118664.
- Highly efficient tris(8-hydroxyquinoline) aluminum-based organic light-emitting diodes utilized by balanced energy transfer with cosensitizing fluorescent dyes, Y. Park et al., Appl. Phys. Lett., 95, 143305 (2009); doi: 10.1063/1.3243689.
- Triplet to singlet transition induced low efficiency roll-off in green phosphorescent organic light-emitting diodes, Z. Su et al., Thin Solid Films 519, 2540–2543 (2011); doi:10.1016/j.tsf.2010.12.008.
- Green organic light-emitting diodes with improved stability and efficiency utilizing a wide band gap material as the host, H. Tang et al., Displays 29, 502–505 (2009); doi:10.1016/j.displa.2008.05.001.
- Improved efficiency for green and red emitting electroluminescent devices using the same cohost composed of 9,10-di(2-naphthyl)anthracene and tris-(8-hydroxyquinolinato)aluminum, J. Zhu et al., Physica E 42, 158–161 (2009); doi:10.1016/j.physe.2009.09.020.