[20a-B104-1~11] 12.4 Organic light-emitting devices and organic transistors

△ [20a-B104-9] Fabrication of Organic Thin-Film Transistors on Nanofilms

〇Chika Okuda¹, Sunghoon Lee¹, Takao Someya¹, Tomoyuki Yokota¹ (1.Univ. of Tokyo)

Keywords:flexible, OTFT

In this research, organic thin film transistors were fabricated on nanofilm substrates with average thickness ~200 nm. These nanofilms consists of polyurethane nanofibers and polydimethylsiloxane films, and has high adhesiveness. On these films, top-contact transistors with DNTT as semiconducting layer were fabricated. The transistors exhibited mobility of 0.20 cm²/Vs, threshold voltage of −0.4 V, and the highest current on/off ratio obtained was over 10⁵.