High-mobility Organic Field-effect Transistors Based on Soluble Small Molecules Dispersed Polymers
Soluble semiconducting small molecules attract growing interest as a promising material for solution-processable organic field-effect transistors (OFETs) because of their high charge mobility. Here, we report on the fabrication of solution-based OFETs using dioctylbenzothienobenzo thiophene (C8-BTBT) with the bottom-contact electrode configuration. The degradation of the electrical performances of bottom-contact C8-BTBT FETs due to a charge injection barrier at electrode contacts is improved by the electrode modification with fluorinated self-assembled monolayers (SAMs). It is found that the dispersion of C8-BTBT into the insulating polymer of polystyrene (PS) improves both device processabilty and electrical stability of bottom-contact C8-BTBT FETs. The bottom-contact OFETs based on C8-BTBT dispersed PS exhibit high field-effect mobility over 0.1 cm2/Vs and lower bias stress as compared to the bottomcontact C8-BTBT FETs.
Shogo Wakuta Hideyuki Hatta Masashi Yoshikawa Takashi Nagase Takashi Kobayashi Masaaki Ikeda Kazuo Takimiya Hiroyoshi Naito
Department of Physics and Electronics, Osaka Prefecture University,1-1 Gakuen-cho, Naka-ku, Sakai 59 Department of Physics and Electronics, Osaka Prefecture University,1-1 Gakuen-cho, Naka-ku, Sakai 59 Functional Chemicals R&D Laboratories, Nippon Kayaku Co., Ltd.,3-31-12 Shimo, Kita-ku, Tokyo 115-858 Department of Applied Chemistry, Hiroshima University,1-4-1 Kagamiyama,Higashi-Hiroshima 739-8527, J
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
699-702
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）