Abstract
A novel diketopyrrolopyrrole-based π-conjugated copolymer P(DPP-alt-DTBSe), 5, and a known copolymer P(DPP-alt-QT), 4, have been synthesized in 80-90% yield using the Stille coupling reaction. The molecular weights of 4 and 5 are 58 781 and 19 271 g/mol, respectively, with polydispersity values of 3.25-3.35. A relatively small band gap of 1.32-1.39 eV and excellent solubility in organic solvents were achieved in the two polymers. Thin-film transistors made of 5 exhibit outstanding performance (e.g., μ > 1.0-1.5 cm2·V-1·s-1, I on/Ioff > 105-106) with a conventional n-octyltrichlorosilane-SiO2 gate dielectric.
Original language | English |
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Pages (from-to) | 10364-10367 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 133 |
Issue number | 27 |
DOIs | |
Publication status | Published - 2011 Jul 13 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry