PCDTBT (CAS 958261-50-2), poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)], is a low band gap donor polymer designed for organic photovoltaics. This listing covers batch M0131A3, with Mw 33,063, Mn 12,240 and PDI 2.70.
Its deeper HOMO (-5.4 eV) and LUMO (-3.6 eV) levels give a higher open circuit voltage, absorption at longer wavelengths and better stability in ambient air than standard OPV materials. In a reference device using PEDOT:PSS as the hole interface and calcium/aluminum as the electron interface, Ossila reports power conversion efficiencies of up to 6.7%, and up to 7.2% has been published with advanced interface layers and antireflection coatings.
Because it tolerates air well, PCDTBT suits large-area deposition such as ink-jet printing, spray coating and blade coating. The material belongs to the Luminosyn range, purified by Soxhlet extraction with methanol, hexane and chlorobenzene under argon, and is supplied with batch-specific GPC data. It is typically used at 4 to 7 mg/ml in a 1:4 blend with PC70BM.
- Donor material in bulk heterojunction organic photovoltaic and polymer solar cells blended with PC70BM.
- Large-area film deposition by ink-jet printing, spray coating or blade coating.
- Hole-transport material in perovskite solar cells when chemically doped.
- Research on organic semiconductors for OLEDs and OFETs.
| Brand | Ossila |
|---|---|
| CAS number | 958261-50-2 |
| Molecular formula | (C43H47N3S3)n |
| Purity | — |
| Category | — |
| Pack sizes | 100 mg, 250 mg, 500 mg, 1 g, 2 g |
| Physical form | — |
| Storage | — |
- Product code: M0131A3
- Batch: M0131A3
- Mw: 33,063
- Mn: 12,240
- PDI: 2.70
- HOMO / LUMO: HOMO = -5.4 eV, LUMO = -3.6 eV
- Soluble In: Chloroform, chlorobenzene, dichlorobenzene and trichlorobenzene
- Recommended Processing Solvents at 10mg/ml: Chloroform, chlorobenzene
- Purification: Soxhlet extraction with methanol, hexane, and chlorobenzene under argon atmosphere
PCDTBT dissolves in chloroform, chlorobenzene, dichlorobenzene and trichlorobenzene; chloroform and chlorobenzene are recommended at 10mg/ml. Consult the MSDS before handling.
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