3TPYMB, or Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (CAS 929203-02-1), is a boron-containing small molecule used as an electron-transport layer (ETL) in organic electronic devices. Ossila supplies it as a sublimed white powder or crystals with a purity above 99.0% by HPLC.
Its LUMO sits at 3.3 eV, slightly below the work function of common cathodes such as CsF/Al, so electrons pass easily into the device instead of building up at the interface. A deep HOMO of 6.8 eV lets the same layer stop holes from reaching the cathode, giving it a dual role as a hole blocker.
With a triplet energy of 2.95 eV, 3TPYMB is also suited to phosphorescent host and TADF work. It appears in published red and blue OLED stacks, including exciplex devices with m-MTDATA, and as a thin electron interfacial layer in perovskite solar cells.
- Electron-transport layer in vacuum-deposited OLEDs.
- Hole-blocking layer placed between the emissive layer and the cathode.
- Host or co-host component in phosphorescent and TADF light-emitting devices.
- Exciplex-forming acceptor paired with donors such as m-MTDATA.
- Electron interfacial layer in perovskite solar cells.
| Brand | Ossila |
|---|---|
| CAS number | 929203-02-1 |
| Molecular formula | C42H42BN3 |
| Purity | Sublimed >99.0% (HPLC) |
| Category | — |
| Pack sizes | 100 mg, 250 mg, 500 mg |
| Physical form | White powder/crystals |
| Storage | — |
- Product code: M2088A1
- Molecular weight: 599.61 g/mol
- Thermal stability: TGA: 250 °C (0.5% weight loss)
- Absorption: λmax 331 nm in THF
- Fluorescence: λem 382 nm in THF
- HOMO/LUMO: HOMO 6.8 eV, LUMO 3.3 eV
- Triplet energy: ET = 2.95 eV
- Synonyms: Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane, Tri[3-(3-pyridyl)mesityl]borane
- Product code: M2088A1
Refer to the 3TPYMB MSDS sheet for safe handling and storage information before use.
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