title: Nano fabrication of conducting polymers for NO gas by Dip pen nanolithography.
abstract: We present a novel fabrication method by using dip pen nanolithography with Poly (3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) for nitric oxide (NO) gas sensor in this report. PEDOT is a kind of conducting polymer which will change its conductance upon NO adsorption. Herein, we have used PEDOT with traditional thick film and DPN nanowires across electrodes. By using traditional thick film device, the lowest detection limit for NO is 3.87 ppm. The preliminary results of DPN nanowires can have aspect ratio (L/W) for up to 220 times and thus have large sensing surface area for higher sensitivity.
authors.affiliation: Institute of Electrical Engineering, National Taiwan University, Taiwan.
authors.forename: Hui-Hsin
authors.initials: HH
authors.lastname: Lu
authors.forename: Chia-Yu
authors.initials: CY
authors.lastname: Lin
authors.forename: Tzu-Chien
authors.initials: TC
authors.lastname: Hsiao
authors.forename: Kuo-Chaun
authors.initials: KC
authors.lastname: Ho
authors.forename: Jim
authors.initials: J
authors.lastname: Tunney
authors.forename: Dongfang
authors.initials: D
authors.lastname: Yang
authors.forename: Stephane
authors.initials: S
authors.lastname: Evoy
authors.forename: Chih-Kung
authors.initials: CK
authors.lastname: Lee
authors.forename: Chii-Wann
authors.initials: CW
authors.lastname: Lin
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry; D020099:Coated Materials, Biocompatible; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004566:Electrodes; D004867:Equipment Design; D006801:Humans; D008422:Materials Testing; D008839:Microelectrodes; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D009569:Nitric Oxide / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry; D013499:Surface Properties
chemical_list: D001672:Biocompatible Materials; D019086:Bridged Bicyclo Compounds, Heterocyclic; D020099:Coated Materials, Biocompatible; D011108:Polymers; D011137:Polystyrenes; C121383:poly(3,4-ethylene dioxythiophene); D009569:Nitric Oxide; C003321:polystyrene sulfonic acid