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Electrical properties of sol-gel derived films containing composites of glass-ceramics and nanocrystalline silver

Published online by Cambridge University Press:  31 January 2011

T. K. Kundu  and
D. Chakravorty
T. K. Kundu
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
D. Chakravorty
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
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Abstract

Sol-gel-derived films containing BaTiO3 crystallites have been grown on suitable substrates using a precursor composition in the system Li2O-BaO-TiO2. Silver particles of diameters in the range 4.9 to 16.2 nm have been synthesized within these films by ion exchange and reduction technique. Electrical resistivities are found to vary from ∼102 to 105 ohm-cm, depending on the silver particle diameter. A low activation energy, approximately a few millielectron volts, is found to characterize the electrical properties of most of the samples. A quantum size effect is invoked to explain the results.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 1 , January 1996 , pp. 200 - 203
Copyright
Copyright © Materials Research Society 1996

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References

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