NASA NTRS · 19890000017
Photovoltaic Hydrogen Sensor
Abstract
Photovoltaic device senses hydrogen developed to test degradation of diodes with platinum flash gates on backs. Sensing element is p/n junction rather than conventional Schottky barrier or metal oxide/silicon field-effect transistor. Hydrogen-indicating electrical signal modulated optically rather than electrically. Layered structure of hydrogen detector and principle of operation resemble silicon solar photovoltaic cell. Hydrogen detector responds to hydrogen in atmosphere within minutes and recovers quickly when hydrogen removed.
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Daud, Taher, Janesick, James R., Lambe, John. 1989-01-01. Photovoltaic Hydrogen Sensor. https://ntrs.nasa.gov/citations/19890000017
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