USE OF A SUBSTRATE FOR THE DETECTION OF CHEMICAL DOPANTS

摘要

In a method and apparatus for detecting toxic chemical hazardous materials and warfare agents in a gas, the gas is exposed to a substrate with a hydrogen terminated surface. The substrate may be made from a nonconductor material with available surface conductivity, or from a semiconductor material. The electrical resistance at the hydrogen terminated surface is measured to detect the presence of the hazardous materials and warfare agents. A method of producing such a substrate detector is also disclosed.