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

7 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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Chen, S., Chen, G., & Ratner, M. A. (2018). Designing Principles of Molecular Quantum Interference Effect Transistors. Journal of Physical Chemistry Letters, 9(11), 2843-2847. https://doi.org/10.1021/acs.jpclett.8b01185

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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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