Parallel-sheets model analysis of space charge layer formation at metal/ionic conductor interfaces
作者： Shusuke Kasamatsu , Tomofumi Tada , Satoshi Watanabe
DOI: 10.1016/J.SSI.2012.08.009
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摘要: Abstract The space charge formation at metal/yttria-stabilized zirconia interface is investigated by combining defect energies from first principles with a parallel-sheets model. In this model, the crystal orientation and interlayer distances between planes are taken into account explicitly. This in contrast to previous models, which utilized continuum approximation. crystal-plane-resolved picture of discussed detail. It found that results model resemble closely those We find be case even for polar (111) cubic zirconia, despite fact approximations implicitly assume homogeneous system. also examine effect yttrium dopant segregation on utilizing tends decrease width oxygen vacancy depletion layer occurs oxidizing atmosphere, it increase accumulation vacancies reducing atmosphere.
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