Designing Principles of Molecular Quantum Interference Effect Transistors

Shuguang Chen; Guanhua Chen; Mark A. Ratner

doi:10.1021/acs.jpclett.8b01185

Designing Principles of Molecular Quantum Interference Effect Transistors

Shuguang Chen, Guanhua Chen^*, Mark A. Ratner

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

To explore the designing principles for the quantum interference effect transistors, a series of simulations are carried out on a 2,5-linked perylene molecular junction composed of two subsystems connected via destructive quantum interference. Simulation results suggest that the overall conductance of a large π-conjugated system is determined by its subsystem connected directly to the electrodes. A Büttiker probe can be treated as a resistor, and to first-order approximation, its effect is found equivalent to severing its surrounding bonds. These findings greatly simplify the design of molecular quantum interference effect transistors.

Original language	English (US)
Pages (from-to)	2843-2847
Number of pages	5
Journal	Journal of Physical Chemistry Letters
Volume	9
Issue number	11
DOIs	https://doi.org/10.1021/acs.jpclett.8b01185
State	Published - Jun 7 2018

ASJC Scopus subject areas

Materials Science(all)
Physical and Theoretical Chemistry

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abstract = "To explore the designing principles for the quantum interference effect transistors, a series of simulations are carried out on a 2,5-linked perylene molecular junction composed of two subsystems connected via destructive quantum interference. Simulation results suggest that the overall conductance of a large π-conjugated system is determined by its subsystem connected directly to the electrodes. A B{\"u}ttiker probe can be treated as a resistor, and to first-order approximation, its effect is found equivalent to severing its surrounding bonds. These findings greatly simplify the design of molecular quantum interference effect transistors.",

author = "Shuguang Chen and Guanhua Chen and Ratner, {Mark A.}",

note = "Funding Information: We thank the Research Grant Council of HKSAR (AoE/P-04/ 08, HKU700913P, 17316016) and The University of Hong Kong (Seed Funding for Strategic Research Theme) for support.",

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N2 - To explore the designing principles for the quantum interference effect transistors, a series of simulations are carried out on a 2,5-linked perylene molecular junction composed of two subsystems connected via destructive quantum interference. Simulation results suggest that the overall conductance of a large π-conjugated system is determined by its subsystem connected directly to the electrodes. A Büttiker probe can be treated as a resistor, and to first-order approximation, its effect is found equivalent to severing its surrounding bonds. These findings greatly simplify the design of molecular quantum interference effect transistors.

AB - To explore the designing principles for the quantum interference effect transistors, a series of simulations are carried out on a 2,5-linked perylene molecular junction composed of two subsystems connected via destructive quantum interference. Simulation results suggest that the overall conductance of a large π-conjugated system is determined by its subsystem connected directly to the electrodes. A Büttiker probe can be treated as a resistor, and to first-order approximation, its effect is found equivalent to severing its surrounding bonds. These findings greatly simplify the design of molecular quantum interference effect transistors.

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Designing Principles of Molecular Quantum Interference Effect Transistors

Abstract

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