title: Substrate-free ultra-flexible organic field-effect transistors and five-stage ring oscillators.
abstract: Freestanding, substrate-free organic field-effect transistors and organic circuits with a nominal thickness of 320 nm are demonstrated by using a simple water-floatation method. The devices work well in freestanding status, attached on banknotes, or bent over the blade of a knife. The ultralight devices with extreme bending stability indicate a bright future for organic electronics.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (PR China).
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Hanlin
authors.initials: H
authors.lastname: Wang
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Guo
authors.forename: Wenping
authors.initials: W
authors.lastname: Hu
authors.forename: Gui
authors.initials: G
authors.lastname: Yu
authors.forename: Yunqi
authors.initials: Y
authors.lastname: Liu
keywords: freestanding; organic field-effect transistors; ultra flexible; water-floatation