Charge Transport Layer Materials, Electron Transport Layer Materials, High Purity Sublimed Materials
Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (known as 3TPYM) is an excellent electron-transport material. With a LUMO energy level of 3.3 eV [1], just lower than most of the work function of cathodes (i.e. CsF/Al), it allows efficient electron injection. This prevents extra electrons from accumulating at the interface.
3TPYMB is also a hole-blocking material with high HOMO of 6.80 eV [1]. This is high enough to block the holes from being recombined with the electrons at the cathode.
3TPYMB has a high triplet-excited energy level (ET = 2.95 eV) [3].
| CAS number | 929203-02-1 |
|---|---|
| Chemical formula | C42H42BN3 |
| Molecular weight | 599.61 g/mol |
| Absorption* | λmax 331 nm in THF |
| Fluorescence | λem 382 nm in THF |
| HOMO/LUMO | HOMO 6.8 eV, LUMO 3.3 eV |
| Synonyms | Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane, Tri[3-(3-pyridyl)mesityl]borane |
| Classification / Family | Electron-transporting materials, Phosphorescent host materials, Light-emitting diodes, Perovskite solar cells, Organic electronics, TADF materials, Sublimed materials |
* Measurable with an USB Spectrometer, see our spectrometer application notes.
| Purity | Sublimed >99.0% (HPLC) |
|---|---|
| Melting point | TGA: 250 °C (0.5% weight loss) |
| Appearance | White powder/crystals |
*Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.
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