title: Flexible low-voltage organic complementary circuits: finding the optimum combination of semiconductors and monolayer gate dielectrics.
abstract: Low-voltage p-channel and n-channel organic transistors with channel lengths down to 0.5 μm using four small-molecule semiconductors and ultra-thin dielectrics based on two different phosphonic acid monolayers are fabricated on plastic substrates and studied in terms of effective mobility, intrinsic mobility and contact resistance. For the optimum materials combination, flexible complementary circuits have signal delays of 3.1 μs at 5 V.
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany; Institute for Organic Chemistry, Technical University Freiberg, 09596, Freiberg, Germany.
authors.forename: Ulrike
authors.initials: U
authors.lastname: Kraft
authors.forename: Mirsada
authors.initials: M
authors.lastname: Sejfić
authors.forename: Myeong Jin
authors.initials: MJ
authors.lastname: Kang
authors.forename: Kazuo
authors.initials: K
authors.lastname: Takimiya
authors.forename: Tarek
authors.initials: T
authors.lastname: Zaki
authors.forename: Florian
authors.initials: F
authors.lastname: Letzkus
authors.forename: Joachim N
authors.initials: JN
authors.lastname: Burghartz
authors.forename: Edwin
authors.initials: E
authors.lastname: Weber
authors.forename: Hagen
authors.initials: H
authors.lastname: Klauk
keywords: complementary ring oscillators; contact resistance; flexible electronics; organic thin-film transistors; self-assembled monolayers