Spotting silicon in graphene, it's dope
from Chemistry World
A combination of scanning transmission electron microscopy and atomic-resolution spectroscopic techniques has allowed U.S. researchers to pick out individual silicon atoms in a doped graphene sheet. The technique reveals that the silicon atoms can exist in a planar hybridized "sp2d" like form when bonded to four carbon atoms, as well as the anticipated sp3 form when triply coordinated.
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