Tuning the Semiconducting Properties of Sexithiophene by alpha,omega-Substitution-alpha,omega-Diperfluorohexylsexithiophene: The First n-Type Sexithiophene for Thin-Film Transistors We thank DARPA (N00421-98-1187) and the NSF-MRSEC program through the Northwestern Materials Research Center (DMR-9632472) for support of this research. H.S. thanks the Royal Society for a University Research Fellowship (URF)
Angew Chem Int Ed Engl. 2000 Dec 15;39(24):4547-4551.
doi: 10.1002/1521-3773(20001215)39:24<4547::aid-anie4547>3.0.co;2-j.