title: Fully printed, high performance carbon nanotube thin-film transistors on flexible substrates.
abstract: Fully printed transistors are a key component of ubiquitous flexible electronics. In this work, the advantages of an inverse gravure printing technique and the solution processing of semiconductor-enriched single-walled carbon nanotubes (SWNTs) are combined to fabricate fully printed thin-film transistors on mechanically flexible substrates. The fully printed transistors are configured in a top-gate device geometry and utilize silver metal electrodes and an inorganic/organic high-κ (~17) gate dielectric. The devices exhibit excellent performance for a fully printed process, with mobility and on/off current ratio of up to ~9 cm(2)/(V s) and 10(5), respectively. Extreme bendability is observed, without measurable change in the electrical performance down to a small radius of curvature of 1 mm. Given the high performance of the transistors, our high-throughput printing process serves as an enabling nanomanufacturing scheme for a wide range of large-area electronic applications based on carbon nanotube networks.
authors.affiliation: Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, United States.
authors.forename: Pak Heng
authors.initials: PH
authors.lastname: Lau
authors.forename: Kuniharu
authors.initials: K
authors.lastname: Takei
authors.forename: Chuan
authors.initials: C
authors.lastname: Wang
authors.forename: Yeonkyeong
authors.initials: Y
authors.lastname: Ju
authors.forename: Junseok
authors.initials: J
authors.lastname: Kim
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Yu
authors.forename: Toshitake
authors.initials: T
authors.lastname: Takahashi
authors.forename: Gyoujin
authors.initials: G
authors.lastname: Cho
authors.forename: Ali
authors.initials: A
authors.lastname: Javey