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Electrical Conductivity of Meso-Porous Si: Effects of the Condensation of Polar Liquids

✍ Scribed by Timoshenko, V.Yu. ;Lysenko, V. ;Dittrich, Th. ;Koch, F.

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
92 KB
Volume
182
Category
Article
ISSN
0031-8965

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✦ Synopsis

A strong dependence of the electrical conductivity of mesoporous Si (meso-PS) on the dielectric constant of ambient surrounding Si nanocrystallites has been shown by currentΒ±voltage and photovoltage measurements. A sharp increase of free carrier concentration in a meso-PS layer filled by polar liquids with high dielectric constants has been found. The observed phenomenon is explained by activation of impurities (boron atoms) due to the decrease of binding energy of carriers trapped by the impurity potential.

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