Influence of the deposition atmosphere on the characteristics of Pd–Mg thin films prepared by pulsed laser deposition |
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Authors: | J. Paillier, S. Bouhtiyya, G.G. Ross,L. Rou |
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Affiliation: | INRS-Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes (Québec) J3X 1S2, Canada |
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Abstract: | Bilayered palladium (30 nm thick)–magnesium (350 nm thick) thin films were prepared using the pulsed laser deposition technique in the presence of various background gases (Ar, He and a mixture He + H2) under different partial pressures (47 and 27 Pa). According to the deposition atmosphere, the Pd/Mg interface shows either a sharp or an extended transition. The electrochemical hydriding properties and the mechanical stability upon cycling of the Pd/Mg film are greatly improved when an extended «intermixing» zone between the Pd and Mg layers is present. The Pd–Mg films prepared under pure helium fulfill these conditions. |
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Keywords: | Metal hydride Magnesium Palladium Thin film Pulsed laser deposition |
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