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Electrical properties of compacted assembly of copper oxide nanoparticles
A BOSE, S BASU, , D CHAKRAVORTY
Published in AMER INST PHYSICS
2005
Volume: 98
   
Issue: 7
Abstract
Cu2 O nanoparticles with diameters in the range 6.0-8.6 nm were prepared by a chemical method. Both dc and ac electrical properties were measured on a compacted nanoparticle assembly. dc electrical resistivity in the temperature range 140-300 K was found to arise due to a variable range hopping conduction mechanism. The ac resistivity variation as a function of frequency (in the range 10 kHz to 3 MHz) and temperature (range 220-320 K) was explained on the basis of the power-law exponent in percolating clusters. The interfacial amorphous phase of the nanoparticle assembly appears to control the electrical behavior of the system. © 2005 American Institute of Physics.
About the journal
JournalJournal of Applied Physics
PublisherAMER INST PHYSICS
ISSN0021-8979
Open AccessNo