BBT-2C6ThBr (4,8-bis(5-bromo-4-hexylthiophene)-benzo[1,2-c;4,5-c']bis[1,2,5] thiadiazole, also known as BBTT6) is a high-purity monomer used to build extremely low band gap polymers for organic field-effect transistors (OFETs). It has served as the starting unit for polymers such as PBBTSD and PBBTPD, whose absorption reaches 1200 nm with an onset at 2030 nm.
The molecule carries two electron-withdrawing benzothiadiazole units, making it strongly electron deficient. This character suits it to ambipolar low band gap polymers, in which both holes and electrons can be injected easily. Bromide end groups on the thiophene rings allow straightforward coupling reactions during polymerisation.
Supplied as a blueish green solid with a purity above 98%, BBT-2C6ThBr is also a benzothiadiazole building block for OLED and organic photovoltaic material synthesis.
- Synthesis of extremely low band gap OFET polymers such as PBBTSD and PBBTPD.
- Preparation of ambipolar donor–acceptor conjugated polymers that accept both electron and hole injection.
- Building block for OLED material synthesis.
- Building block for organic photovoltaic materials and low band gap polymers.
- Coupling reactions using its bromide end groups in semiconductor synthesis.
| Brand | Ossila |
|---|---|
| CAS number | N/A |
| Molecular formula | C26H28Br2N4S4 |
| Purity | >98% |
| Category | — |
| Pack sizes | 250 mg, 500 mg, 1 g |
| Physical form | Blueish green solid |
| Storage | — |
- Product code: B741
- Full Name: 4,8-bis(5-bromo-4-hexylthiophene)-benzo[1,2-c;4,5-c']bis[1,2,5] thiadiazole
- Synonyms: BBTT6
- Molecular Weight: 684.61 g/mol
- Classification / Family: BBT derivatives, Organic intermediates and building blocks, Semiconductor Synthesis, Low band gap polymers, Organic Photovoltaics
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