Friction transfer deposition of ordered conjugated polymer nanowires and transistor fabrication

Monodisperse, ordered conjugated polymer nanowires were deposited by friction-transfer technique. Films that comprise such ordered polymer nanowires show a strong optical and electronic anisotropy due to the high compaction of molecule chains in the individual nanowires. Field-effect transistors that were fabricated using poly[9,9-dioctylfluorene-co-bithiophene(F8T2)] nanowires exhibit a field-effect mobility of 3.5x10(-2) cm(2) V-1 s(-1) along the wire direction, which is much higher than the mobility value (5x10(-3) cm(2) V-1 s(-1)) obtained in transistors with spin-coated F8T2. (c) 2005 American Institute of Physics.