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Open Access item A New Hydrogen Sensor Based on a Pt/GaAs Schottky Diode

Authors:Lechuga, Laura M.
Calle Martín, Ana
Golmayo, Dolores
Tejedor, P.
Briones Fernández-Pola, Fernando
Keywords:Chemical sensors, Hydrogen, Platinum, Gallium arsenide, Schottky diodes, Work function, Catalysis
Issue Date:1991
Publisher:Electrochemical Society
Citation:Journal of the Electrochemical Society 138(1): 159-162 (1991)
Abstract:A new hydrogen-sensitive detector based on a Pt/GaAs Schottky diode has been fabricated. The devices have beencharacterized by dark current-voltage and capacitance-voltage measurements, as a function of temperature and gas phasecomposition. At 150°C, the detection limit for hydrogen is 6 ppm in a nitrogen environment and 200 ppm in air.
Description:4 páginas, 7 figuras, 1 tabla.-- PACS: 82.45.Jn; 07.07.Df; 85.30.Hi.
Publisher version (URL):http://dx.doi.org/10.1149/1.2085527
Appears in Collections:(IMM-CNM) Artículos

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