[19a-A201-1~13] 12.4 Organic light-emitting devices and organic transistors

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[19a-A201-5] Carbon-based, metal-free complementary circuits

〇Kazuyoshi Watanabe¹, Naoki Miura², Hiroaki Taguchi², Takeshi Komatsu², Atsushi Aratake², Tatsuyuki Makita³, Masahiro Tanabe³, Takahiro Wakimoto³, Shohei Kumagai⁴, Toshihiro Okamoto^4,5, Shun Watanabe¹, Jun Takeya^1,5 (1.Univ. of Tokyo, 2.NTT Device Tech. Labs., NTT Corp., 3.Pi-Crystal Inc., 4.Tokyo Tech, 5.JST-CREST)

Keywords:

organic thin-film transistor,complementary circuit,carbon electrode

In recent years, it has become possible to fabricate large-scale organic thin-film transistors (OTFTs) using organic semiconductors with high mobility exceeding 10 cm²/Vs. As a result, it is now feasible to mass-produce cost-effective devices based on organic materials with excellent resource recyclability. However, many of these devices still utilize precious metals for their electrodes, leading to a demand for electrode materials that exhibit superior resource recyclability. In this study, we have successfully fabricated metal-free OTFTs and their complementary circuits by using graphite-based carbon for their electrodes and wires.