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Product Code M2176A1-250mg
Price $455 ex. VAT

B4PyPPm, ETL material for OLED devices

High-performance host for red fluorescent and phosphorescent TADF-OLEDs


Overview | Specifications | Pricing and Options | MSDS | Literature and Reviews


B4PyPPM has a 2-phenylpyrimidine skeleton structure with four pyridine pendants. It exhibits superior electron injection properties and an electron mobility that is 10 times higher than those of 3-pyridine derivatives (e.g. B3PyMPM).

Like B4PymPm, B4PyPPM is electron-deficient and used as an electron transport or injection-layer material for OLED devices. Due to its electron-deficient nature, B4PyPPM can also be used with electron-donating materials to form exciplex systems. These are ideal candidates to act as high-performance hosts of both red fluorescent and phosphorescent TADF-OLEDs.

General Information


CAS number 1097652-83-9
Full name 4,6-Bis(3,5-di(pyridin-4-yl)phenyl)-2-phenylpyrimidine, 4,6-Bis(3,5-di-4-pyridinylphenyl)-2-phenylpyrimidine
Chemical formula C42H28N6
Molecular weight 616.71 g/mol
Absorption λmax 254 nm in DCM
Fluorescence n.a.
HOMO/LUMO HOMO = 7.15 eV, LUMO = 3.44 eV [1]; ET1 = 2.72 eV
Synonyms 4,6-Bis(3,5-di-4-pyridinylphenyl)-2-phenylpyrimidine
Classification / Family Pyrimidine derivatives, Highly efficient light-emitting diodes, Organic electronics, Electron-transport layer (ETL) materials, Hole-blocking layer (HBL) materials, TADF materials, Sublimed materials.

Product Details


Purity Sublimed >99.0% (HPLC)
Melting point 356 °C
Appearance White crystals/powder

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure


B4PyPPm chemical structure
Chemical structure of B4PyPPm

Device Structure(s)


Device structure ITO (110 nm)/TPDPES*:10 wt% TBPAH (20 nm)/TAPC (30 nm)/CBP:8 wt% Ir(ppy)3 (10 nm)/B4PyPPM (50 nm)/LiF (0.5 nm)/Al (100 nm) [1]
Colour Green green light emitting device
Power Efficiency @100 cd/cm2 128 lm W−1
Current Efficiency @100 cd/cm2 105 cd/A
Device structure ITO/MoO3 (1 nm)/TAPC (20 nm)/Tris-PCz* (10 nm)/Tris-PCz:B4PyPPM:3 wt% Ir(MDQ)2acac (30 nm)/B4PyPPM (50 nm)/LiF (1 nm)/Al (100 nm) [2]
Colour Red red light emitting device
Max. Power Efficiency 37.7 lm W−1
Max. Current Efficiency 33.7 cd/A
Max. EQE 20.3%
Device structure ITO (130 nm)/HATCN (1 nm)/TAPC (50 nm)/CBP:17 wt% Ir(ppy)3 (10 nm)/B4PyPPM (50 nm)/Libpp (1 nm)/Al (80 nm) [3]
Colour Green green light emitting device
Max. Power Efficiency 125.4 lm W−1
Max. Current Efficiency 83.7 cd/A
Max. EQE 23.8%
Device structure ITO/PPBI (20 nm)/TAPC (20 nm)/TCTA/CBP:20 wt% 26PXZINN* (20 nm)/B4PyPPm (50 nm)/LiF (0.5 nm)/Al (100 nm) [4]
Colour Green green light emitting device
Max. Power Efficiency 99.0 lm W−1
Max. Current Efficiency 75.6 cd/A
Max. EQE 22.2%
Device structure ITO (100 nm)/HATCN (1 nm)/TAPC (65 nm)/TCTA (5 nm)/20 wt% DACT-II-doped CBP (10 nm)/B4PyPPm (50 nm)/Liq (1 nm)/Al (80 nm) [5]
Colour Green green light emitting device
Max. Power Efficiency 99.0 lm W−1
Max. Current Efficiency 75.6 cd/A
Max. EQE 22.2%
Device structure ITO (130 nm)/TAPC (35 nm)/TCTA (5 nm)/CBP (5 nm)/CBP doped with 5 wt% 4CzIPN (5 nm)/B4PyPPM (65 nm)/LiF (0.8 nm)/Al (100 nm) [6]
Colour Green green light emitting device
Max. Power Efficiency 106.9 lm W−1
Max. Current Efficiency 83.2 cd/A
Max. EQE 25.7%

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

Pricing


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2176A1 250 mg £350
Sublimed (>99.0% purity) M2176A1 500 mg £580
Sublimed (>99.0% purity) M2176A1 1 g £900

MSDS Documentation


B4PyPPm MSDSB4PyPPm MSDS sheet

Literature and Reviews


  1. 2-Phenylpyrimidine skeleton-based electron-transport materials for extremely efficient green organic light-emitting devices, H. Sasabe et al., Chem. Commun., 5821–5823 (2008); DOI: 10.1039/b812270a.
  2. High-performance red organic light-emitting devices based on an exciplex system with thermally activated delayed fluorescence characteristic, S. Yuan et al., Org. Electrn., 39, 10-15 (2016); DIO: 10.1016/j.orgel.2016.09.020.
  3. Extremely Low Operating Voltage Green Phosphorescent Organic Light-Emitting Devices, H. Sasabe et al., Adv. Funct. Mater., 23, 5550–5555 (2013); DOI: 10.1002/adfm.201301069.
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