B4PyPPm
CAS Number 1097652-83-9
Electron / Hole Transport Layer Materials, High Purity Sublimed Materials, Materials, Perovskite Interface Materials, Perovskite Materials, Semiconducting Molecules, TADF Materials
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
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 
|
| 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 
|
| 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
|
| 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
|
| 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
|
| 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
|
| 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 MSDS sheetLiterature and Reviews
- 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.
- 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.
- 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.