Ossila PSBTBT M2095A3

PSBTBT, also sold under the synonym Si-PCPDTBT (CAS 1089687-02-4), is a dithienosilole-based semiconducting polymer with a low band gap. Its broad absorption covers much of the visible spectrum and reaches into the near-infrared, which makes it a candidate donor material for organic photovoltaics, all-polymer solar cells, OFETs and photodetectors.

The silicon bridge in the backbone forms a C-Si bond that is notably longer than the equivalent carbon bond. This eases steric crowding between the bulky 2-ethylhexyl side chains and the neighbouring thiophene rings, giving a semi-crystalline polymer with a tighter π-π stacking distance.

Batch M2095A3 has an Mw of 25,001, an Mn of 12,933 and a PDI of 1.93. The polymer dissolves in chloroform, chlorobenzene and dichlorobenzene, with chlorobenzene recommended for processing at 10mg/ml. Reported energy levels are HOMO = - 5.0 eV and LUMO = - 3.5 eV.

• Donor polymer in the active layer of organic photovoltaic and tandem polymer solar cells.
• Active material for all-polymer solar cell research.
• Semiconducting channel material in organic field-effect transistors (OFETs).
• Light-absorbing layer in photodetectors extending into the near-IR region.
• Research on thermoelectric properties of high-mobility polymeric semiconductors.

• Product code: M2095A3
• Full name: Poly[(4,4‐bis(2‐ethylhexyl)‐dithieno[3,2‐b:2′,3′‐d]silole)‐2,6‐diyl‐alt‐(2,1,3‐benzothiadiazole)‐4,7‐diyl]
• Synonyms: Si-PCPDTBT
• HOMO / LUMO: HOMO = - 5.0 eV, LUMO = - 3.5 eV
• Soluble in: Chloroform, chlorobenzene, dichlorobenzene
• Recommended processing solvent at 10mg/ml: Chlorobenzene
• Batch: M2095A3
• Mw: 25,001
• Mn: 12,933
• PDI: 1.93
• Classification / Family: Dithienosilole, Organic semiconducting materials, Low band gap polymers, Organic photovoltaics, All-polymer solar cells, OFETs, Photodetectors

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