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Product Code M2344A1
Price $363.00 ex. VAT

DMPPP, effective host material for blue fluorescent devices

Exhibits high luminance without compromising on the efficiency

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.

General Information

CAS number 1036404-84-8
Full name 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene
Chemical formula C40H26
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[1]
Synonyms 1-(2,5-dimethyl-4-(1-pyrenyl)phenyl)pyrene
Classification / Family Pyrene derivatives, Blue emitter, Fluorescent host materials, Sublimed materials

Product Details

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.

Chemical Structure

Chemical structure of DMPPP, CAS# 1036404-84-8
Chemical structure of Chemical structure of 1,1'-(2,5-Dimethyl-1,4-phenylene)dipyrene (DMPPP), CAS 1036404-84-8.

Device Structure(s)

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) [1]
Colour blue light emitting device Blue
Max Current Efficiency 12.3 cd/A 
Max. Power Efficiency 5.7 Im/W
Max. EQE 10.2%
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) [2]
Colour blue light emitting device Blue
Max Current Efficiency 13.0 cd/A 
Max. Power Efficiency 8.9 Im/W
Max. EQE 10.7%

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


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2344A1 250 mg £290
Sublimed (>99.0% purity) M2344A1 500 mg £460
Sublimed (>99.0% purity) M2344A1 1 g £760

MSDS Documentation


Literature and Reviews

  1. 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.
  2. Superior upconversion fluorescence dopants for highly efficient deep-blue electroluminescent devices, Y. Chen et al., Chem. Sci., 7, 4044 (2016); DOI: 10.1039/c6sc00100a.
  3. 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.

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