作者: S. Borini , L. Boarino , G. Amato
DOI: 10.1063/1.2357882
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摘要: The resistivity of (100)-oriented mesoporous silicon has been studied using two different electrode configurations. authors observed that the electronic transport along longitudinal direction (parallel to sample surface) is strongly inhibited at room temperature but not perpendicular direction. They show such electrical anisotropy can be removed by heating material, reporting an increase six orders magnitude conductivity when rises from 20to100°C. These experimental findings are interpreted on basis material morphology and nanostructuration, which determine availability percolative pathways for free charge carriers.