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Electronic properties probed by scanning tunneling spectroscopy: From isolated gold nanocrystal to well-defined supracrystals

Posted on February 7, 2013 at 10:45am 0 Comments

Scanning tunneling microscopy and spectroscopy at 5 K have been used to determine the electronic properties of 7-nm dodecanethiol-passivated Au nanocrystals in three different configurations: isolated nanocrystal, self-organized thin films (few nanocrystal layers), and large three-dimensional well-defined thick films (over 30 nanocrystal layers) called supracrystals. The electronic properties of both thin and thick well-ordered supracrystals are analyzed in scanning tunneling spectroscopy…


Unexpected Electronic Properties of Micrometer-Thick Supracrystals of Au Nanocrystals

Posted on March 27, 2012 at 4:10pm 5 Comments

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…


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At 1:25pm on October 15, 2008,
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At 5:35pm on June 1, 2008,
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"A Good book For you: Understanding Solids"
At 5:21pm on June 1, 2008,
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No. I don't work. I work in this fields"
Nano composites
At 1:37pm on May 27, 2008,
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Hello sir
Myself vedpriya
Can XRD be used for the characterization of nanoparticles in plant extract?
At 11:41am on May 27, 2008,
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Xiaopeng Ge
Nice to know you. Maybe we can discuss more about the common topics on the SPM and the theory model calculation so that I can learn a lot from you.
At 6:21am on January 21, 2008,
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Dear pengyang
what's your field?
Do you work in Nanoelectronic?
Best regards
At 7:38pm on January 18, 2008,
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Welcome to NanoScience Network!

Andras Paszternak, editor

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