Publication

Systematic experimental study of quantum interference effects in anthraquinoid molecular wires

Carlotti, M., Soni, S., Qiu, X., Sauter, E., Zharnikov, M. & Chiechi, R. C., 1-May-2019, In : Nanoscale advances. 1, 5, p. 2018-2028 11 p.

Research output: Contribution to journalArticleAcademicpeer-review

In order to translate molecular properties in molecular-electronic devices, it is necessary to create design principles that can be used to achieve better structure-function control oriented toward device fabrication. In molecular tunneling junctions, cross-conjugation tends to give rise to destructive quantum interference effects that can be tuned by changing the electronic properties of the molecules. We performed a systematic study of the tunneling charge-transport properties of a series of compounds characterized by an identical cross-conjugated anthraquinoid molecular skeleton but bearing different substituents at the 9 and 10 positions that affect the energies and localization of their frontier orbitals. We compared the experimental results across three different experimental platforms in both single-molecule and large-area junctions and found a general agreement. Combined with theoretical models, these results separate the intrinsic properties of the molecules from platform-specific effects. This work is a step towards explicit synthetic control over tunneling charge transport targeted at specific functionality in (proto-) devices.

Original languageEnglish
Pages (from-to)2018-2028
Number of pages11
JournalNanoscale advances
Volume1
Issue number5
Publication statusPublished - 1-May-2019

    Keywords

  • SELF-ASSEMBLED MONOLAYERS, TUNNELING JUNCTIONS, LARGE-AREA, CROSS-CONJUGATION, CONDUCTANCE, TRANSPORT, ELECTRONICS, ROBUST, EGAIN
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  1. Correction: Systematic experimental study of quantum interference effects in anthraquinoid molecular wires (vol 1, pg 2018, 2019)

    Carlotti, M., Soni, S., Qiu, X., Ai, Y., Sauter, E., Zharnikov, M. & Chiechi, R. C., 1-May-2019, In : Nanoscale advances. 1, 5, p. 2040-2040 1 p.

    Research output: Contribution to journalArticleAcademicpeer-review

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