ja4065443_si_001.pdf (2.48 MB)
Bilayer Molecular Electronics: All-Carbon Electronic Junctions Containing Molecular Bilayers Made with “Click” Chemistry
journal contribution
posted on 2013-09-04, 00:00 authored by Sayed
Youssef Sayed, Akhtar Bayat, Mykola Kondratenko, Yann Leroux, Philippe Hapiot, Richard L. McCreeryBilayer molecular
junctions were fabricated by using the alkyne/azide
“click” reaction on a carbon substrate, followed by
deposition of a carbon top contact in a crossbar configuration. The
click reaction on an alkyne layer formed by diazonium reduction permitted
incorporation of a range of molecules into the resulting bilayer,
including alkane, aromatic, and redox-active molecules, with high
yield (>90%) and good reproducibility. Detailed characterization
of
the current–voltage behavior of bilayer molecular junctions
indicated that charge transport is consistent with tunneling, but
that the effective barrier does not strongly vary with molecular structure
for the series of molecules studied.