Sensor Element, Method of Making, and Method of Using the Same

摘要

A sensor element includes first and second conductive electrodes that include interconnected carbon fibers. At least one or the first or second conductive electrodes is porous. The electrodes are separated by a porous dielectric detection layer including a sorbent material. Methods of making a sensor element and analyzing an analyte vapor are also disclosed.

主权项

1. A sensor element comprising:
a first conductive electrode having inner and outer surfaces, wherein the first conductive electrode comprises interconnected carbon fibers; a second conductive electrode having inner and outer surfaces, wherein the second conductive electrode is porous and comprises interconnected carbon fibers, and wherein at least one of the first or second conductive electrodes is porous; and a porous dielectric detection layer having a thickness and disposed between the first and second conductive electrodes, wherein the porous dielectric detection layer comprises a sorbent material comprising an intrinsically microporous polymer containing dibenzodioxane linkages between monomeric units that are rigid, contorted, or rigid and contorted, and wherein the inner surfaces of the first and second conductive electrodes are separated by at least the thickness of the porous dielectric detection layer.