CONDUCTION IN POROUS SILICON CONTACTED BY A LIQUID-PHASE

The origin of the electronic free charge carrier accumulation/depletio n in the porous silicon skeleton contacted with an electrolyte is dete rmined by investigating the limiting step in the conduction process. E xperimental evidence, supported by quantitative considerations, show t hat the porous silicon can be conductive if the free charge carrier Au x supplied by the substrate is not the rate-determining step of the el ectrical current conduction.