Bilayer molecular electronics: All-carbon electronic junctions containing molecular bilayers made with click chemistry

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[1] [1,2,Sayed, Sayed Youssef
[2] 1,Bayat, Akhtar
[3] 1,Kondratenko, Mykola
[4] Leroux, Yann
[5] Hapiot, Philippe
[6] 1,McCreery, Richard L.
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McCreery, R.L. (richard.mccreery@ualberta.ca) | 1600年 / American Chemical Society卷 / 135期
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Bilayer 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. © 2013 American Chemical Society;
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