Abstract
Two new alternating copolymers, PAIIDBT and PAIIDSe have been prepared by incorporating a highly electron deficient azaisoindigo core. The molecular structure and packing of the monomer is determined from the single crystal X-ray diffraction. Both polymers exhibit high EAs and highly planar polymer backbones. When polymers are used as the semiconducting channel for solution-processed thin film transistor application, good properties are observed. A-A type PAIIDBT exhibits unipolar electron mobility as high as 1.0 cm2 V-1 s-1, D-A type PAIIDSe exhibits ambipolar charge transport behavior with predominately electron mobility up to 0.5 cm2 V-1 s-1 and hole mobility to 0.2 cm2 V-1 s-1. The robustness of the extracted mobility values are also commented on in detail. Molecular orientation, thin film morphology and energetic disorder of both polymers are systematically investigated.
Original language | English (US) |
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Pages (from-to) | 9704-9710 |
Number of pages | 7 |
Journal | Journal of Materials Chemistry C |
Volume | 4 |
Issue number | 41 |
DOIs | |
State | Published - 2016 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Materials Chemistry