Abstract
Copper oxide nanoparticles of median diameter 17 nm were synthesized by a chemical method. By subjecting these to a reduction treatment at 373 K for a duration extending to 1 h copper shells of thicknesses in the range 2-6.5 nm were grown. Optical absorption measurements were carried out on these core-shell structured nanosystems in the temperature range 274-343 K. Analyses of the data show that below a shell thickness of 3 nm the copper shell conductivity has a value below the Mott's minimum metallic conductivity and shows a semiconducting behavior. Electrical conductivity measurements on pellets of the nanostructured powders show a resistivity variation at low temperatures with activation energies in satisfactory agreement with those obtained from the optical studies.
Chatterjee, K;
Satpati, B;
Satyam, P V;
Chakravorty, D;
[1]
Institute of Physics, Bhubaneswar 751 005 (India);
Indian Association for the Cultivation of Science, Kolkata-700 032 (India)]
- Indian Association for the Cultivation of Science, Kolkata-700 032 (India)
Citation Formats
Chatterjee, K, Satpati, B, Satyam, P V, Chakravorty, D, Institute of Physics, Bhubaneswar 751 005 (India), and Indian Association for the Cultivation of Science, Kolkata-700 032 (India)].
Metal-to-nonmetal transition in copper nanoshells grown on copper oxide nanoparticles.
United States: N. p.,
2004.
Web.
doi:10.1063/1.1759075.
Chatterjee, K, Satpati, B, Satyam, P V, Chakravorty, D, Institute of Physics, Bhubaneswar 751 005 (India), & Indian Association for the Cultivation of Science, Kolkata-700 032 (India)].
Metal-to-nonmetal transition in copper nanoshells grown on copper oxide nanoparticles.
United States.
https://doi.org/10.1063/1.1759075
Chatterjee, K, Satpati, B, Satyam, P V, Chakravorty, D, Institute of Physics, Bhubaneswar 751 005 (India), and Indian Association for the Cultivation of Science, Kolkata-700 032 (India)].
2004.
"Metal-to-nonmetal transition in copper nanoshells grown on copper oxide nanoparticles."
United States.
https://doi.org/10.1063/1.1759075.
@misc{etde_20619030,
title = {Metal-to-nonmetal transition in copper nanoshells grown on copper oxide nanoparticles}
author = {Chatterjee, K, Satpati, B, Satyam, P V, Chakravorty, D, Institute of Physics, Bhubaneswar 751 005 (India), and Indian Association for the Cultivation of Science, Kolkata-700 032 (India)]}
abstractNote = {Copper oxide nanoparticles of median diameter 17 nm were synthesized by a chemical method. By subjecting these to a reduction treatment at 373 K for a duration extending to 1 h copper shells of thicknesses in the range 2-6.5 nm were grown. Optical absorption measurements were carried out on these core-shell structured nanosystems in the temperature range 274-343 K. Analyses of the data show that below a shell thickness of 3 nm the copper shell conductivity has a value below the Mott's minimum metallic conductivity and shows a semiconducting behavior. Electrical conductivity measurements on pellets of the nanostructured powders show a resistivity variation at low temperatures with activation energies in satisfactory agreement with those obtained from the optical studies.}
doi = {10.1063/1.1759075}
journal = []
issue = {1}
volume = {96}
journal type = {AC}
place = {United States}
year = {2004}
month = {Jul}
}
title = {Metal-to-nonmetal transition in copper nanoshells grown on copper oxide nanoparticles}
author = {Chatterjee, K, Satpati, B, Satyam, P V, Chakravorty, D, Institute of Physics, Bhubaneswar 751 005 (India), and Indian Association for the Cultivation of Science, Kolkata-700 032 (India)]}
abstractNote = {Copper oxide nanoparticles of median diameter 17 nm were synthesized by a chemical method. By subjecting these to a reduction treatment at 373 K for a duration extending to 1 h copper shells of thicknesses in the range 2-6.5 nm were grown. Optical absorption measurements were carried out on these core-shell structured nanosystems in the temperature range 274-343 K. Analyses of the data show that below a shell thickness of 3 nm the copper shell conductivity has a value below the Mott's minimum metallic conductivity and shows a semiconducting behavior. Electrical conductivity measurements on pellets of the nanostructured powders show a resistivity variation at low temperatures with activation energies in satisfactory agreement with those obtained from the optical studies.}
doi = {10.1063/1.1759075}
journal = []
issue = {1}
volume = {96}
journal type = {AC}
place = {United States}
year = {2004}
month = {Jul}
}