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Photovoltaic Hydrogen SensorPhotovoltaic 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.
Document ID
19890000017
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Daud, Taher
(Caltech)
Janesick, James R.
(Caltech)
Lambe, John
(Caltech)
Date Acquired
August 13, 2013
Publication Date
January 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 1
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-17124
Accession Number
89B10017
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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