title: Orientation selectivity in a multi-gated organic electrochemical transistor.
abstract: Neuromorphic devices offer promising computational paradigms that transcend the limitations of conventional technologies. A prominent example, inspired by the workings of the brain, is spatiotemporal information processing. Here we demonstrate orientation selectivity, a spatiotemporal processing function of the visual cortex, using a poly(3,4ethylenedioxythiophene):poly(styrene sulfonate) (
  
  
  
  PSS) organic electrochemical transistor with multiple gates. Spatially distributed inputs on a gate electrode array are found to correlate with the output of the transistor, leading to the ability to discriminate between different stimuli orientations. The demonstration of spatiotemporal processing in an organic electronic device paves the way for neuromorphic devices with new form factors and a facile interface with biology.
authors.affiliation: Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France.
authors.forename: Paschalis
authors.initials: P
authors.lastname: Gkoupidenis
authors.affiliation: Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France.
authors.forename: Dimitrios A
authors.initials: DA
authors.lastname: Koutsouras
authors.affiliation: Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France.|MicroVitae Technologies, Hôtel Technologique, Europarc Sainte Victoire Bât 6, Route de Valbrillant, 13590 Meyreuil, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Lonjaret
authors.affiliation: School of Chemistry and CRANN Institute, Trinity College Dublin, Dublin 2, Ireland.
authors.forename: Jessamyn A
authors.initials: JA
authors.lastname: Fairfield
authors.affiliation: Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France.
authors.forename: George G
authors.initials: GG
authors.lastname: Malliaras