High performance, acene-based organic thin film transistors.

1,4,8,11-Methyl-substituted 6,13-triethylsilylethynylpentacene shows extended pi-pi overlap when deposited from solution, yielding organic thin film transistors with high and reproducible hole mobility with negligible hysteresis.

Regioregular poly(3-hexyl)selenophene: a low band gap organic hole transporting polymer.

The synthesis of regioregular poly(3-hexyl)selenophene is reported, and its optical and electrical properties are compared to those of regioregular poly(3-hexyl)thiophene.

Hexyl-substituted oligothiophenes with a central tetrafluorophenylene unit: crystal engineering of planar structures for p-type organic semiconductors.

Rigidification has been achieved in thiophene-tetrafluorophenylene architectures through strong S...F and H...F intramolecular interactions; the resulting materials are promising candidates for p-type organic field effect transistors.