Abstract
Potential-step experiments on gadolinium thin-film electrodes provide current and optical transmission transients, whose time constants are related to effective hydrogen diffusion coefficients according to a standard diffusion model. The diffusion coefficients and switching kinetics depend on temperature, hydrogen concentration, potential, and film thickness. A thickness dependence of the kinetics is observed in which the diffusion coefficient and optical switching time are linearly dependent. (C) 2003 American Institute of Physics.
Original language | English |
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Pages (from-to) | 4659-4664 |
Number of pages | 6 |
Journal | Journal of Applied Physics |
Volume | 94 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Oct 2003 |
Keywords
- MODEL-INDEPENDENT MEASUREMENTS
- OPTICAL-TRANSMISSION
- HYDRIDE FILMS
- DIFFUSION
- YTTRIUM
- SPECTROSCOPY
- GD