▎ 摘　　要

Top-contacted organic field-effect transistors (OFETs) with graphene electrodes were fabricated by the laminate transfer method. Graphene electrodes were prepared on a different glass substrate and transferred onto an organic semiconductor layer of poly(3-hexylthiophene) (P3HT) using a double-layer laminate film of polyacrylonitrile ( PAN) and poly( methyl methacrylate) ( PMMA). The fabricated top-contacted OFET with graphene electrodes covered by the polymer film showed good p-type transistor characteristics with hole mobility of (3.7 +/- 0.5) x 10(-2) cm(2) V-1 s(-1), and 92% of the mobility was maintained even after exposure to ambient air for 250 h. (C) 2012 The Japan Society of Applied Physics