Changes of the thermally oxidized porous silicon conductivity induced by adsorption and electric field

Citation
Aa. Petrov et al., Changes of the thermally oxidized porous silicon conductivity induced by adsorption and electric field, PHYS LOW-D, 7-8, 1999, pp. 1-7
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF LOW-DIMENSIONAL STRUCTURES
ISSN journal
02043467 → ACNP
Volume
7-8
Year of publication
1999
Pages
1 - 7
Database
ISI
SICI code
0204-3467(1999)7-8:<1:COTTOP>2.0.ZU;2-6
Abstract
Thermal oxidation of porous silicon was demonstrated to reduce drastically the adsorption sensitivity of the porous layer conductivity. Considerable i ncrease of the conductivity of silicon-oxidized porous silicon-metal struct ures placed in water or ethanol vapor under forward voltage has been observ ed. The effect was attributed to the modulation of conductivity of non-oxid ized cores of porous silicon wires by the mobile ion charge drifting along the oxide surfaces.