Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 4, Issue 41, Pages 9704-9710Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc03000a
Keywords
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Funding
- 7th European Community Framework Programme [FP7-PEOPLE-2013-IEF-622187]
- EC FP7 Project SC2
- EC FP7 Project ArtESun
- EC FP7 Project PolyMed
- EPSRC Project [EP/G037515/1]
- Marie Curie Intra-European Fellowship
- EPSRC [EP/J021199/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J021199/1] Funding Source: researchfish
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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 cm(2) V-1 s(-1), D-A type PAIIDSe exhibits ambipolar charge transport behavior with predominately electron mobility up to 0.5 cm(2) V-1 s(-1) and hole mobility to 0.2 cm(2) 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.
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