Captodative Substitution

A Strategy for Enhancing the Conductivity of Molecular Electronic Devices

Thijs Stuyver, Tao Zeng, Yuta Tsuji, Stijn Fias, Paul Geerlings, Frank De Proft

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We explore a new strategy to tune the conductivity of molecular electronic devices: captodative substitution. We demonstrate that a careful design of such substitution schemes on a benzene parental structure can enhance the conductivity by almost an order of magnitude under small bias. Once this new strategy has been established, we apply it to molecular wires and demonstrate that it enables the unprecedented anti-Ohmic design of wires whose conductivity increases with the length. Overall, the captodative substitution approach provides a very promising pathway toward full chemical control of the conductivity of molecules which opens up the possibility to design molecular switches with an improved on/off ratio among others.

Original languageEnglish
Pages (from-to)3194-3200
Number of pages7
JournalJournal of Physical Chemistry C
Volume122
Issue number6
DOIs
Publication statusPublished - Feb 15 2018

Fingerprint

Molecular electronics
molecular electronics
Substitution reactions
substitutes
conductivity
Wire
wire
Benzene
Switches
Molecules
switches
benzene
molecules

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Captodative Substitution : A Strategy for Enhancing the Conductivity of Molecular Electronic Devices. / Stuyver, Thijs; Zeng, Tao; Tsuji, Yuta; Fias, Stijn; Geerlings, Paul; De Proft, Frank.

In: Journal of Physical Chemistry C, Vol. 122, No. 6, 15.02.2018, p. 3194-3200.

Research output: Contribution to journalArticle

Stuyver, Thijs ; Zeng, Tao ; Tsuji, Yuta ; Fias, Stijn ; Geerlings, Paul ; De Proft, Frank. / Captodative Substitution : A Strategy for Enhancing the Conductivity of Molecular Electronic Devices. In: Journal of Physical Chemistry C. 2018 ; Vol. 122, No. 6. pp. 3194-3200.
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