title: All-printed flexible organic transistors enabled by surface tension-guided blade coating.
abstract: A combination of surface energy-guided blade coating and inkjet printing is used to fabricate an all-printed high performance, high yield, and low variability organic thin film transistor (OTFT) array on a plastic substrate. Functional inks and printing processes were optimized to yield self-assembled homogenous thin films in every layer of the OTFT stack. Specifically, we investigated the effect of capillary number, semiconductor ink composition (small molecule-polymer ratio), and additive high boiling point solvent concentrations on film fidelity, pattern design, device performance and yields.
authors.affiliation: Department of Electrical Engineering and Computer Sciences, UC Berkeley, Berkeley, CA, 94720, USA.
authors.forename: Adrien
authors.initials: A
authors.lastname: Pierre
authors.forename: Mahsa
authors.initials: M
authors.lastname: Sadeghi
authors.forename: Marcia M
authors.initials: MM
authors.lastname: Payne
authors.forename: Antonio
authors.initials: A
authors.lastname: Facchetti
authors.forename: John E
authors.initials: JE
authors.lastname: Anthony
authors.forename: Ana Claudia
authors.initials: AC
authors.lastname: Arias
keywords: Printed organic electronics; flexible electronics; organic semiconductor blends; organic thin film transistors; solution processed thin films