Carl A. Marrese

Fabrication and evaluation of thin-film solid-state sensors for hydrogen sulfide detection

Abstract Thin-film tungsten oxide sensors were fabricated by using metal-organic deposition (MOD) processes. Suitable tungsten carboxylate compounds were synthesized and used as precursor materials for the thin-films of tungsten oxide. The sensors were incorporated into a vacuum line as a new method of evaluation. Operation of the sensors under these conditions proved to be a useful way of providing a very sensitive, reproducible and stable system for measurement of low-level hydrogen sulfide evolved from aqueous solutions.