Thienothiophene, for the synthesis of small molecules and polymers
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Thieno[3,2-b]thiophene, also known as thienothiophene (TT), is a heterocyclic compound. It belongs to the family of fused thiopehenes and is widely used as an intermediate for the synthesis of small molecules and polymers in the application of organic field-effect transistors (OFETs) and organic photovoltaic devices (OPV).
Fused thiophenes are more electron-rich and more structurally rigid, with extended π-conjugation so they are good candidates for adjusting the band gap of the organic polymer semiconducting materials, i.e. Poly[2,5-bis(3-hexadecylthiophen-2-yl)thieno[3,2-b]thiophene] (also known as PBTTT).
|Molecular weight||140.23 g/mol|
|Classification / Family||Thiophene, Fused thiophene, Dithiapentalene, Heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band gap polymers OFETs, Organic Photovoltaics, Polymer solar cells|
Literature and Reviews
- Thienothiophenes, Dithienothiophenes, and Thienoacenes: Syntheses, Oligomers, Polymers, and Properties, M. E. Cinar et al., Chem. Rev., (2015), DOI: 10.1021/cr500271a
- A stable solution-processed polymer semiconductor with record high-mobility for printed transistors, Li et al., Sci. Reports, 2, 754, (2012) DOI: 10.1038/srep00754.
- Liquid-crystalline semiconducting polymers with high charge-carrier mobility, I. McCulloch et al., Nat. Mater., 5, 328 (2006)
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