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Calculated Valence Electron Density of Silicon Nanocrystal

Calculated valence electron density of a silicon nanocrystal

Pictured here, the calculated valence electron density of a silicon nanocrystal.

This plot shows where all the electrons tend to be moving within the silicon nanocrystal. Each electron in the molecule exists in a strangely shaped orbit, but when looking at all the electrons and their orbits, the average is this. Note how the plot looks like the electrons form clouds around all the atoms and in between neighboring atoms. This plot shows the bonds that exist between atoms that hold the molecule together. This research was funded in part by the National Science Foundation (grants DMR 01-02668 and DMR 01-21361). (Year of image: 2002) [One of three related images. See Next Image.]

Credit: Zack Helms, Quantum Simulations Laboratory, North Carolina State University; simulations completed using computational resources provided by the National Center for Supercomputing Applications.

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