An inkjet-printed chemical fuse
2004; American Institute of Physics; Volume: 86; Issue: 1 Linguagem: Inglês
10.1063/1.1846950
ISSN1520-8842
AutoresM.F. Mabrook, C. Pearson, M.C. Petty,
Tópico(s)Advanced Chemical Sensor Technologies
ResumoInkjet printing of the conductive polymer poly(3,4-ethylene dioxythiophene) doped with polystyrene sulfonated acid has been used as the basis for a sensor for organic vapors. The electrical resistance of the film was monitored as it was exposed to atmospheres containing alcohol. Ultrathin films exhibited a sharp and nonreversible increase in their resistance. This resulted from a change in the morphology of the organic layer, thereby disrupting the current flow through the polymer. An intended application for these inkjet-printed devices is in disposable handheld instruments to monitor the presence of organic vapors above a threshold level.
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