Use of thin films of conjugated organic macrocycles as the active elements in toxic-gas sensors operating at room temperature

Abstract

A study of the piezoelectric and direct-current conductive properties of thin films of conjugated macrocyclic organic materials in the presence of industrial-pollutant gases is described. Particular attention is paid to the search for a reversible sensor for dinitrogen tetroxide that can operate in the range 10–1000 ppm at or near room temperature in an industrial atmosphere. Recommendations are given for a reversible system for detecting HCl and for a non-reversible system for the rapid detection of chlorine in the presence of electron-donor gases.