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Unexpected Electronic Properties of Micrometer-Thick Supracrystals of Au Nanocrystals
We investigated the electronic properties of highly ordered three-dimensional colloidal crystals of gold nanocrystals (7 ± 0.4 nm), called supracrystals. Two kinds of Au supracrystals with typical thicknesses of 300 nm and 5 μm, respectively, are probed for the first time with scanning tunneling microscopy/spectroscopy at 5 K revealing similar power law behavior and showing homogeneous conductance with the fingerprint of isolated nanocrystal. Potential applications evading the size-related risks of nanocrystals could be then considered.
Keywords:
Collective electronic properties; Coulomb blockade; Coulomb staircase; scanning tunneling microscopy/spectroscopy
Comment
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Comment by pengyang on February 7, 2013 at 10:37am -
Dear Professor Robert Pope and Kondalarao tata, thank you for your comments, now I put another our publication about the electronic properties of supracrystals made of Au nanocrystals.
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Comment by Professor Robert Pope on March 29, 2012 at 3:52am -
Re nanotechnology and gold particles discoveries. The effect of such research is greatly adding to the research of those seeking to eloborate upon the cultural electromagnetic theories of the 18th and 19th Century's, so called Romantic scientists such as Humboldt, Schelling, Kant and Oersted, etc.
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Comment by kondalarao tata on March 28, 2012 at 4:34pm -
quite interesting, it also helps further studies on electronic properties of nano gold particles
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