Poly(oligothiophene-alt-benzothiadiazole)s: Tuning the Structures of Oligothlophene Units toward High-Mobility "Black" Conjugated Polymers
Data(s) |
2009
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Resumo |
A series of donor-acceptor low-bandgap conjugated polymers, i.e., PTnBT (n = 2-6), composed of alternating oligothiophene (OTh) and 2,1,3-benzothiadiazole (BT) units were synthesized by Stille cross-coupling polymerization. The number of thiophene rings in OTh units, that is n, was tuned from 2 to 6. All these polymers display two absorption bands in both solutions and films with absorption maxima depending on n. From solution to film, absorption spectra of the polymers exhibit a noticeable red shift. Both high- and low-energy absorption bands or P'F5BT and PT6BT films locate in the visible region, which are at 468 and 662 nm for PT5BT and 494 and 657 nm for PT6BT. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Yue W;Zhao Y;Tian HK;Song D;Xie ZY;Yan DH;Geng YH;Wang FS.Poly(oligothiophene-alt-benzothiadiazole)s: Tuning the Structures of Oligothlophene Units toward High-Mobility "Black" Conjugated Polymers,MACROMOLECULES ,2009,42(17):6510-6518 |
Palavras-Chave | #THIN-FILM TRANSISTORS #ORGANIC SOLAR-CELLS #BAND-GAP POLYMER #FIELD-EFFECT TRANSISTORS #PHOTOVOLTAIC PROPERTIES #ABSORPTION-SPECTRA #BROAD ABSORPTION #CHARGE-TRANSPORT #EMITTING-DIODES #SIDE-CHAINS |
Tipo |
期刊论文 |