title: Strain-induced reversal of charge transfer in contact electrification.
abstract: We have contact! Material strain can have a dominating effect on contact electrification. When a deflated (relaxed) balloon is rubbed against teflon, the teflon surface charges positively, but when the same balloon is inflated (strained), the teflon surface charges negatively. This result illustrates that material strain can control contact electrification and alter the driving force of some (yet unknown) charge-transfer species.
authors.affiliation: Department of Chemical Engineering, Case Western Reserve University, Cleveland, OH 44106-7217, USA.
authors.forename: Mamadou
authors.initials: M
authors.lastname: Sow
authors.forename: Ross
authors.initials: R
authors.lastname: Widenor
authors.forename: Ajay
authors.initials: A
authors.lastname: Kumar
authors.forename: Seung Whan
authors.initials: SW
authors.lastname: Lee
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Lacks
authors.forename: R Mohan
authors.initials: RM
authors.lastname: Sankaran