Ossila PCDTBT M0131A2

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 carbazole-based donor polymer for organic photovoltaics. Batch M0131A2 is the lower molecular weight grade, with Mw 10,145, Mn 5,319 and a PDI of 1.90.

Its HOMO of -5.4 eV and LUMO of -3.6 eV give it three advantages over standard OPV materials: a higher open circuit voltage, absorption that extends to longer wavelengths, and better stability in ambient air. In Ossila's own labs, PCDTBT reached power conversion efficiencies of up to 6.7% in a standard device with a PEDOT:PSS hole interface and a calcium/aluminum electron interface. Published work using advanced interface layers and antireflection coatings reports up to 7.2%.

Because it tolerates air well, PCDTBT suits large-area deposition such as ink-jet printing, spray coating and blade coating. These methods need uniform, aggregate-free films, which is why lower molecular weight material such as this batch is often preferred. The polymer belongs to Ossila's Luminosyn range. It is purified by Soxhlet extraction with methanol, hexane and chlorobenzene under argon, and each batch comes with its own GPC data.

• Donor material in bulk heterojunction organic photovoltaic devices blended with PC70BM.
• Active layers deposited by ink-jet printing, spray coating or blade coating, where aggregate-free films are needed.
• Hole-transport material in perovskite solar cells, as reported in the literature when chemically doped.
• Research on organic semiconductors for OLEDs and OFETs.

• Product code: M0131A2
• Batch: M0131A2
• Mw: 10,145
• Mn: 5,319
• PDI: 1.90
• 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

—

—