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Communication

Switching Quantum Interference in Phenoxyquinone Single Molecule Junction with Light

Device Modelling Group, School of Engineering, University of Warwick, Coventry CV4 7AL, UK
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Nanomaterials 2020, 10(8), 1544; https://doi.org/10.3390/nano10081544
Received: 18 July 2020 / Revised: 2 August 2020 / Accepted: 3 August 2020 / Published: 6 August 2020
(This article belongs to the Special Issue Nanoelectronics: Concepts, Theory and Modeling)
Quantum interference (QI) can lead to large variations in single molecule conductance. However, controlling QI using external stimuli is challenging. The molecular structure of phenoxyquinone can be tuned reversibly using light stimulus. In this paper, we show that this can be utilized to control QI in phenoxyquinone derivatives. Our calculations indicate that, as a result of such variation in molecular structure of phenoxyquinone, a crossover from destructive to constructive QI is induced. This leads to a significant variation in the single molecule conductance by a couple of orders of magnitude. This control of QI using light is a new paradigm in photosensitive single molecule switches and opens new avenues for future QI-based photoswitches. View Full-Text
Keywords: photochromic molecules; quantum interference; electrical conductance; molecular electronics; photoswitches photochromic molecules; quantum interference; electrical conductance; molecular electronics; photoswitches
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MDPI and ACS Style

Daaoub, A.; Sangtarash, S.; Sadeghi, H. Switching Quantum Interference in Phenoxyquinone Single Molecule Junction with Light. Nanomaterials 2020, 10, 1544. https://doi.org/10.3390/nano10081544

AMA Style

Daaoub A, Sangtarash S, Sadeghi H. Switching Quantum Interference in Phenoxyquinone Single Molecule Junction with Light. Nanomaterials. 2020; 10(8):1544. https://doi.org/10.3390/nano10081544

Chicago/Turabian Style

Daaoub, Abdalghani, Sara Sangtarash, and Hatef Sadeghi. 2020. "Switching Quantum Interference in Phenoxyquinone Single Molecule Junction with Light" Nanomaterials 10, no. 8: 1544. https://doi.org/10.3390/nano10081544

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