Semiaromatic polyamides with enhanced charge carrier mobility
Résumé
The control of local order in polymer semiconductors using non-covalent interactions may be used to
engineer materials with interesting combinations of mechanical and optoelectronic properties. To
investigate the possibility of preparing n-type polymer semiconductors in which hydrogen bonding
plays an important role in structural order and stability, we have used solution-phase
polycondensation to incorporate dicyanoperylene bisimide repeat units into an aliphatic polyamide
chain backbone. The morphology and thermomechanical characteristics of the resulting polyamides, in
which the aliphatic spacer length was varied systematically, were comparable with those of existing
semiaromatic engineering polyamides. At the same time, the charge carrier mobility as determined by
pulse-radiolysis time-resolved microwave conductivity measurements was found to be about 10–
2 cm2 V–1 s–1, which is similar to that reported for low molecular weight perylene bisimides. Our results
hence demonstrate that it is possible to use hydrogen bonding interactions as a means to introduce
promising optoelectronic properties into high-performance engineering polymers.
Domaines
Matériaux
Fichier principal
zen et al. - 2021 - Semiaromatic polyamides with enhanced charge carri.pdf (8.79 Mo)
Télécharger le fichier
Origine | Fichiers produits par l'(les) auteur(s) |
---|