Silicon carbide-based hydrogen and hydrocarbon gas detection

Gary W. Hunter, Philip G. Neudeck, Liang Yu Chen, Dak Knight, C. C. Liu, Q. H. Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations


Hydrogen and hydrocarbon detection in aeronautical applications is important for reasons of safety and emissions control. The use of silicon carbide as a semiconductor in a metal-semiconductor or metal-insulator-semiconductor structure opens opportunities to measure hydrogen and hydrocarhona in high temperature environments beyond the capabilities of silicon-based devices. The purpose of this paper is to explore the response and stability of Pd-Sic Schottky diodes as gas sensors in the temperature range from 100 °C to 400 °C. The effect of heat treating on the diode properties as measured at 100 °Cis explored. Subsequent operation at 400 °C demonstrates the diode's sensitivity to hydrogen and hydrocarbons. It is concluded that the Pd-Sic Schottky diode has potential as a hydrogen and hydrocarbon sensor over a wide range of temperatures hut further studies are necessary to determine the diode's long term stability.

Original languageEnglish
Title of host publication31st Joint Propulsion Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9780000000002
StatePublished - 1995
Event31st Joint Propulsion Conference and Exhibit, 1995 - San Diego, United States
Duration: 10 Jul 199512 Jul 1995

Publication series

Name31st Joint Propulsion Conference and Exhibit


Conference31st Joint Propulsion Conference and Exhibit, 1995
Country/TerritoryUnited States
CitySan Diego


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