CAS 1089687-02-4

Poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]]

Description:

Poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]] is a conjugated polymer known for its application in organic electronics, particularly in organic photovoltaics and field-effect transistors. This polymer features a backbone composed of alternating electron-rich and electron-deficient units, which enhances its charge transport properties. The presence of the benzothiadiazole unit contributes to its strong electron-accepting characteristics, while the silolo-dithiophene segment provides good electron-donating capabilities. The incorporation of bulky side chains, such as 2-ethylhexyl groups, improves solubility and processability, facilitating film formation and device fabrication. Additionally, this polymer exhibits good thermal stability and can be tuned for specific optical and electronic properties through structural modifications. Its unique combination of properties makes it a promising candidate for high-performance organic electronic applications, where efficient charge separation and transport are critical for device efficiency.

Formula: (C₃₀H₃₈N₂S₃Si)n

SMILES: C(C(CCCC)CC)[Si]1(CC(CCCC)CC)C2=C(C3=C1C=C(*)S3)SC(=C2)C=4C=5C(C(*)=CC4)=NSN5

Synonyms:

• Lt-S951
• Poly[(4,4′-bis(2-ethylhexyldithieno[3,2-b:2′,3′-d]silole)-2,6-diyl-alt-(2,1,3-benzothiadiazole)-4,7-diyl]
• Poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b']dithiophene-2,6-diyl]]
• Poly[2,6-(4,4′-bis(2-ethylhexyl)dithieno[3,2-b:2′,3′-d]silole)-alt-4,7-(2,1,3-benzothiadiazole)]
• Psbtbt
• Si-PCPDTBT