Alignment and field-effect transistor behavior of an alternative π-conjugated copolymer of thiophene and 4-alkylthiazole

Charge-transfer-type pi-conjugated copolymer of thiophene and 4-alkylthiazole is aligned on the surface of a platinum substrate, with the alkyl groups oriented toward the surface of the substrate. The copolymer served as a good material for a polymer field-effect transistor and gave a mobility of 2.5 x 10(-3) cm(2) V-1 s(-1).