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SELF-CONSISTENT THEORY OF IONIC-DIFFUSION ACROSS MATERIAL INTERFACES
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DOI：10.1088/0031-8949/49/3/020.png)
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摘要
En 中文
Ion diffusion across material interfaces is considered in the framework of the one-dimensional lattice-gas model of hopping diffusion, which is generalized to include the space-charge effects near the solid-solid interface, by solving the coupled diffusion and Poisson equations with appropriate boundary conditions. Overvoltage measurements on InSe, and dielectric loss measurements on the ternary glass B2O3-0.5Li(2)0-0.15Li2SO4 are used to determine the field-free hopping rates in the two materials. The influence of the Coulomb correlations on the ion diffusion is demonstrated and numerical illustrative examples are presented for different values of the model parameters. An important application of these results is the simulation of charge transfer across the interface glass-intercalate in a thin-film battery.
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