Stabilized switchable "black state" in Mg2NiH 4/Ti/Pd thin films for optical hydrogen sensing

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Stabilized switchable "black state" in Mg2NiH 4/Ti/Pd thin films for optical hydrogen sensing

Journal Article (2006)

Author(s)

M. Pasturel (Vrije Universiteit Amsterdam)

M. Slaman (Vrije Universiteit Amsterdam)

D. M. Borsa (Vrije Universiteit Amsterdam)

H. Schreuders (Vrije Universiteit Amsterdam)

B. Dam (Vrije Universiteit Amsterdam)

R. Griessen (Vrije Universiteit Amsterdam)

W. Lohstroh (Forschungszentrum Karlsruhe GmbH)

A. Borgschulte (GKSS Research Center)

Affiliation

External organisation

DOI related publication

https://doi.org/10.1063/1.2221412 Final published version

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https://resolver.tudelft.nl/uuid:f907c7c8-2cb0-49e4-8e1e-a29aece0914b

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Publication Year

2006

Language

English

Affiliation

External organisation

Journal title

Applied Physics Letters

Issue number

2

Volume number

89

Article number

021913

Downloads counter

137

Abstract

A triple layer thin film (30 nm Mg2Ni/100 nm Ti/10 nm Pd sputtered on glass) switches reversibly from a shiny metallic to a "black" state upon exposure to moderate hydrogen pressure (≈5.103 Pa). This black state resembles that obtained in thick Mg2NiHx layers and has the great advantage of being stable and easily controlled. Both the reversible high optical contrast (R reflective/Rblack ≈ 10 in the red wavelength range) and the fast kinetics of hydrogen absorption and desorption make this material interesting for applications as optical hydrogen sensors.