Effective Gating in Single-Molecule Junctions through Fano Resonances
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Effective Gating in Single-Molecule Junctions through Fano Resonances. / Prindle, Claudia R.; Shi, Wanzhuo; Li, Liang; Dahl Jensen, Jesper; Laursen, Bo W.; Steigerwald, Michael L.; Nuckolls, Colin; Venkataraman, Latha.
I: Journal of the American Chemical Society, Bind 146, Nr. 6, 2024, s. 3646-3650.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Effective Gating in Single-Molecule Junctions through Fano Resonances
AU - Prindle, Claudia R.
AU - Shi, Wanzhuo
AU - Li, Liang
AU - Dahl Jensen, Jesper
AU - Laursen, Bo W.
AU - Steigerwald, Michael L.
AU - Nuckolls, Colin
AU - Venkataraman, Latha
N1 - Funding Information: C.R.P. was supported by a National Defense Science and Engineering Graduate Fellowship. W.S. was supported by the U.S.-Israel Binational Science Foundation Award 2020327. L.L. was supported by the National Science Foundation Award NSF DMR-2241180. We thank Dr. Scott Docherty for help with molecular rendering and scientific discussions. Publisher Copyright: © 2024 American Chemical Society.
PY - 2024
Y1 - 2024
N2 - The successful incorporation of molecules as active circuit elements relies on the ability to tune their electronic properties through chemical design. A synthetic strategy that has been used to manipulate and gate circuit conductance involves attaching a pendant substituent along the molecular conduction pathway. However, such a chemical gate has not yet been shown to significantly modify conductance. Here, we report a novel series of triarylmethylium and triangulenium carbocations gated by different substituents coupled to the delocalized conducting orbitals on the molecular backbone through a Fano resonance. By changing the pendant substituents to modulate the position of the Fano resonance and its coupling to the conducting orbitals, we can regulate the junction conductance by a remarkable factor of 450. This work thus provides a new design principle to enable effective chemical gating of single-molecule devices toward effective molecular transistors.
AB - The successful incorporation of molecules as active circuit elements relies on the ability to tune their electronic properties through chemical design. A synthetic strategy that has been used to manipulate and gate circuit conductance involves attaching a pendant substituent along the molecular conduction pathway. However, such a chemical gate has not yet been shown to significantly modify conductance. Here, we report a novel series of triarylmethylium and triangulenium carbocations gated by different substituents coupled to the delocalized conducting orbitals on the molecular backbone through a Fano resonance. By changing the pendant substituents to modulate the position of the Fano resonance and its coupling to the conducting orbitals, we can regulate the junction conductance by a remarkable factor of 450. This work thus provides a new design principle to enable effective chemical gating of single-molecule devices toward effective molecular transistors.
U2 - 10.1021/jacs.3c14226
DO - 10.1021/jacs.3c14226
M3 - Journal article
C2 - 38293735
AN - SCOPUS:85184573193
VL - 146
SP - 3646
EP - 3650
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 6
ER -
ID: 383195015