DMPPP, or 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene, has a structure of two pyrene units linked via a dimethylphenyl linker. DMPPP is known as a triplet-triplet annihilation (TTA) energy up-conversion material to effectively regulate exciton utilization.
Normally, DMPPP is used as an effective host material for fluorescent blue devices, exhibiting TTA-type delayed electroluminescence. Unlike TADF-based OLEDs, which generally have low maximum luminance and high roll-off efficiencies, DMPPP host devices provide high luminance without compromising on the efficiency.
DMPPP is also a good blue emitter with a high PLQY of 0.85, a singlet energy level of 3.1 eV and triplet energy level of 2.1 eV.
|Molecular weight||506.63 g/mol|
|Absorption||λmax 390 nm in Toluene|
|PL||λem 397 nm in DCM|
|HOMO/LUMO||HOMO = 5.26 eV, LUMO = 2.50 eV; S1=2.1 eV, T1=2.1 eV|
|Classification / Family||Pyrene derivatives, Blue emitter, Fluorescent host materials, Sublimed materials|
|Purity||Sublimed >99.0% (HPLC)|
|Melting point||Tg = 137 °C|
|Appearance||Pale White 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.
|Device structure||ITO/NPNPB: 10% MoO3 (5 nm)/NPNPB (80 nm)/NPB(10 nm)/DMPPP:5% TSTA* (25 nm)/BAlq2 (20 nm)/LiF (1 nm)/Al (100 nm) |
|Max Current Efficiency||12.3 cd/A|
|Max. Power Efficiency||5.7 Im/W|
|Device structure||ITO/NPB (60 nm)/NPB:DPASP (3 wt%, 10 nm)/DMPPP:DPASP* (5 wt%, 15 nm)/BAlq (20 nm)/LiF (1 nm)/Al (100 nm) |
|Max Current Efficiency||13.0 cd/A|
|Max. Power Efficiency||8.9 Im/W|
*For chemical structure information, please refer to the cited references.
|Sublimed (>99.0% purity)||M2344A1||250 mg||£245.00|
|Sublimed (>99.0% purity)||M2344A1||500 mg||£390.00|
|Sublimed (>99.0% purity)||M2344A1||1 g||£625.00|
Literature and Reviews
- Efficient delayed fluorescence from triplet-triplet annihilation for deep-blue electroluminescence, P. Chou et al., Chem. Commun., 50, 6869-6871 (2014); DOI: 10.1039/C4CC01851F.
- Superior upconversion fluorescence dopants for highly efficient deep-blue electroluminescent devices, Y. Chen et al., Chem. Sci., 7, 4044 (2016); DOI: 10.1039/c6sc00100a.
- The Photophysical Properties of Dipyrenylbenzenes and Their Application as Exceedingly Efficient Blue Emitters for Electroluminescent Devices, K. Wu et al., Adv. Funct. Mater., 18 (1), 67-75 (2008); DOI: 0.1002/adfm.200700803..
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.