title: Conducting polymer transistors making use of activated carbon gate electrodes.
abstract: The characteristics of the gate electrode have significant effects on the behavior of organic electrochemical transistors (OECTs), which are intensively investigated for applications in the booming field of organic bioelectronics. In this work, high specific surface area activated carbon (AC) was used as gate electrode material in OECTs based on the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrenesulfonate) (PSS). We found that the high specific capacitance of the AC gate electrodes leads to high drain-source current modulation in OECTs, while their intrinsic quasi-reference characteristics make unnecessary the presence of an additional reference electrode to monitor the OECT channel potential.
authors.affiliation: Department of Chemical Engineering, Polytechnique Montreal , C.P. 6079, Succ. Centre Ville, Montreal H3C 3A7, Canada.
authors.forename: Hao
authors.initials: H
authors.lastname: Tang
authors.forename: Prajwal
authors.initials: P
authors.lastname: Kumar
authors.forename: Shiming
authors.initials: S
authors.lastname: Zhang
authors.forename: Zhihui
authors.initials: Z
authors.lastname: Yi
authors.forename: Gregory De
authors.initials: GD
authors.lastname: Crescenzo
authors.forename: Clara
authors.initials: C
authors.lastname: Santato
authors.forename: Francesca
authors.initials: F
authors.lastname: Soavi
authors.forename: Fabio
authors.initials: F
authors.lastname: Cicoira
mesh_terms: D015374:Biosensing Techniques; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D025802:Electric Capacitance; D004563:Electrochemistry / Q000379:methods; D004566:Electrodes; D004581:Electronics; D004867:Equipment Design; D008422:Materials Testing; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D014173:Transistors, Electronic
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D011108:Polymers; D011137:Polystyrenes; C121383:poly(3,4-ethylene dioxythiophene); C003321:polystyrene sulfonic acid; D002244:Carbon
keywords: PEDOT:PSS; activated carbon; conducting polymers; electrochemical doping; electrochemical transistors; organic electronics