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Title: Electrochemical study of hydrogen diffusion in yttrium hydride switchable mirrors
Authors: Di Vece, Marcel ×
Kelly, JJ #
Issue Date: Aug-2003
Publisher: Elsevier science sa
Series Title: Journal of alloys and compounds vol:356 pages:156-159
Abstract: Potential-step experiments on yttrium thin films show exponential decay of the current as a function of time. A diffusion model for a thin-layer system relates the time constants to effective diffusion coefficients for hydrogen in the di- and trihydride concentration range. The diffusion coefficient is found to be concentration-dependent. From the temperature dependence of the diffusion coefficients and the optical switching time, activation energies are calculated. The good agreement with literature values supports the model of diffusion-limited kinetics for the optical switching. (C) 2002 Elsevier B.V. All rights reserved.
URI: 
ISSN: 0925-8388
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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