Residual electrolyte as a factor influencing the electrical properties of porous silicon

Autor: Parkhutik, V.P
Zdroj: Thin Solid Films; April 1996, Vol. 276 Issue: 1-2 p195-199, 5p
Abstrakt: The electrical properties of luminescent porous silicon layers (PS) were studied using a method of a.c. impedance spectroscopy in a range of electric field frequencies 0.175-105Hz (amplitude 1 V) and temperatures −100 °C to +200 °C. It was found that the a.c. electrical conductivity of PS is very sensitive to its post-anodizing treatments. An electric equivalent circuit was designed to fit the experimental data acquired at differently treated PS samples. The components of the equivalent circuit were assigned to physical elements of PS (a surface phase on top of PS and a layer of underlying bulk material).
Databáze: Supplemental Index
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