title: Rectification of ionic current in a nanofluidic diode.
abstract: We demonstrate rectification of ionic transport in a nanofluidic diode fabricated by introducing a surface charge discontinuity in a nanofluidic channel. Device current-voltage (I-V) characteristics agree qualitatively with a one-dimensional model at moderate to high ionic concentrations. This study illustrates ionic flow control using surface charge patterning in nanofluidic channels under high bias voltages.
authors.affiliation: Department of Mechanical Engineering, University of California, Berkeley, California 94720, USA.
authors.forename: Rohit
authors.initials: R
authors.lastname: Karnik
authors.forename: Chuanhua
authors.initials: C
authors.lastname: Duan
authors.forename: Kenneth
authors.initials: K
authors.lastname: Castelino
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Daiguji
authors.forename: Arun
authors.initials: A
authors.lastname: Majumdar