[9a-Z11-1~13] 12.4 Organic light-emitting devices and organic transistors

▼ [9a-Z11-11] Scalable ultrahigh-speed fabrication of uniform crystalline thin films for organic transistors

〇(PC)Hao WU¹, Hiroaki Iino¹, Jun-ichi Hanna¹ (1.Tokyo Institute of Technology)

Keywords:liquid crystalline semiconductors, Dip-coating, organic transistors

Utilization of printing technologies to fabricate organic semiconductor thin films is expected for low-cost production of the devices for flexible electronics. However, large-scale high-speed fabrication of uniform organic semiconductor thin films with adequate electrical properties for these devices remains a big challenge. In this study, we demonstrate an ultrafast and scalable fabrication of uniform crystalline thin films with 100% surface coverage using liquid crystalline semiconductors such as Ph-BTBT-10 and C8-BTBT, at a rate of 3 orders of magnitude higher than before by dip-coating without seriously sacrificing FET performance. The present results indicate that we come one step closer to realizing the printed electronics.