Chemical control of double barrier tunnelling in α,ω-dithiaalkane molecular wires

Literature Information

Publication Date 2007-08-13
DOI 10.1039/B709576G
Impact Factor 6.222
Authors

Edmund Leary, Simon J. Higgins, Harm van Zalinge, Wolfgang Haiss, Richard J. Nichols


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Abstract

Single molecule conductance measurements on 1,4-bis-(6-thia-hexyl)-benzene derivatives reveal (i) that benzene rings serve as an effective indentation in the tunnelling barrier, and (ii) that more electron-rich benzene rings give higher conductances, consistent with hole conduction (i.e.via the benzene HOMO).

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