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On-demand final state control of a surface-bound bistable single molecule switch

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Date
09/05/2018
Author
Garrido Torres, Jose A.
Simpson, Grant J.
Adams, Christopher J.
Fruchtl, Herbert A.
Schaub, Renald
Keywords
Scanning tunneling microscopy
Density functional theory
Tautomerisation
Molecular switches
Inelastic tunneling
Nano-electronics
QD Chemistry
DAS
BDC
R2C
Metadata
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Abstract
Modern electronic devices perform their defined action because of the complete reliability of their individual active components (transistors, switches, diodes, and so forth). For instance, to encode basic computer units (bits) an electrical switch can be used. The reliability of the switch ensures that the desired outcome (the component’s final state, 0 or 1) can be selected with certainty. No practical data storage device would otherwise exist. This reliability criterion will necessarily need to hold true for future molecular electronics to have the opportunity to emerge as a viable miniaturization alternative to our current silicon-based technology. Molecular electronics target the use of single-molecules to perform the actions of individual electronic components. On-demand final state control over a bistable unimolecular component has therefore been one of the main challenges in the past decade (1−5) but has yet to be achieved. In this Letter, we demonstrate how control of the final state of a surface-supported bistable single molecule switch can be realized. On the basis of the observations and deductions presented here, we further suggest an alternative strategy to achieve final state control in unimolecular bistable switches.
Citation
Garrido Torres , J A , Simpson , G J , Adams , C J , Fruchtl , H A & Schaub , R 2018 , ' On-demand final state control of a surface-bound bistable single molecule switch ' , Nano Letters , vol. 18 , no. 5 , pp. 2950-2956 . https://doi.org/10.1021/acs.nanolett.8b00336
Publication
Nano Letters
Status
Peer reviewed
DOI
https://doi.org/10.1021/acs.nanolett.8b00336
ISSN
1530-6984
Type
Journal article
Rights
Copyright © 2018 American Chemical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1021/acs.nanolett.8b00336
Description
We acknowledge financial support from the Scottish Funding Council (through EaStCHEM and SRD-Grant HR07003) and from EPSRC (PhD studentship for JAGT, EP/M506631/1). Computational support was provided via the EaStCHEM Research Computing Facility.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/17423

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