Iyad Nasrallah

TL;DR: A comparative transport study of several high-mobility conjugated polymers by field-effect-modulated Seebeck, transistor and sub-bandgap optical absorption measurements is reported, showing that in several of these polymers, the charge transport properties approach intrinsic disorder-free limits at which all molecular sites are thermally accessible.

TL;DR: It is shown that in the highly ordered lamellar microstructure of a regioregular thiophene-based conjugated polymer, a small-molecule p-type dopant can be incorporated by solid state diffusion into the layers of solubilizing side chains without disrupting the conjugate layers.

TL;DR: It is shown that water incorporated in nanometre-sized voids within the polymer microstructure is the key factor in charge trapping and device degradation and by inserting molecular additives that displace water from these voids, it is possible to increase the stability as well as uniformity to a high level sufficient for demanding industrial applications.

TL;DR: The underlying mechanism is shown, by which small-molecular additives with water-binding nitrile groups or alternatively water-solvent azeotropes are capable of removing water-induced traps leading to a significant improvement in OFET performance.

TL;DR: This study focuses on state-of-the-art polymer thin-film transistors based on poly(indacenodithiophene-benzothiadiazole) and shows that the general paradigm for low-voltage operation via an enhanced gate-to-channel capacitive coupling is unable to deliver high-performance device behavior.