Semiconducting organic polymer gas sensor

摘要

A gas sensor comprising a pair of electrodes. The gas sensor includes one or more semiconducting organic polymers deposited between the pair of electrodes in such a manner as to effect a semiconducting electrical connection therebetween. The gas sensor also includes a device for applying an electric signal across the electrodes and a detector for detecting a chosen electrical property across the electrodes in the presence of a gas. At least one of the semiconducting organic polymers is polymerized from a monomer comprising a five membered heterocyclic aromatic ring with substituent groups at the 2 and 5 positions.