Nano fabrication of conducting polymers for NO gas by Dip pen nanolithography.
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.
Lu
Hui-Hsin
HH
Institute of Electrical Engineering, National Taiwan University, Taiwan.
Lin
Chia-Yu
CY
Hsiao
Tzu-Chien
TC
Ho
Kuo-Chaun
KC
Tunney
Jim
J
Yang
Dongfang
D
Evoy
Stephane
S
Lee
Chih-Kung
CK
Lin
Chii-Wann
CW
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
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