Title :
Nano Fabrication of Conducting Polymers for NO Gas by Dip Pen Nanolithography
Author :
Hui-Hsin Lu ; Chia-Yu Lin ; Tzu-Chien Hsiao ; Kuo-Chaun Ho ; Tunney, J. ; Dongfang Yang ; Evoy, S. ; Chih-Kung Lee ; Chii-Wann Lin
Author_Institution :
Nat. Taiwan Univ., Taipei
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.
Keywords :
adsorption; biomedical materials; conducting polymers; electrodes; gas sensors; nanobiotechnology; nanolithography; nanowires; DPN nanowires; NO adsorption; NO gas; PEDOT; conductance; conducting polymers; dip pen nanolithography; nanofabrication; nitric oxide gas sensor; poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate); thick film; thick film device; Electrodes; Fabrication; Gas detectors; Nanolithography; Nanowires; Plasma properties; Polymers; Substrates; Surface treatment; Wires; Bicyclo Compounds, Heterocyclic; Biocompatible Materials; Coated Materials, Biocompatible; Electrochemistry; Electrodes; Equipment Design; Humans; Materials Testing; Microelectrodes; Nanoparticles; Nanotechnology; Nitric Oxide; Polymers; Polystyrenes; Surface Properties;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352773
