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Dipolar and electronic effects on charge transport through single transition metal complexes

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Abstract

Charge transport through single molecular neutral mono- and di-cobalt(II) complexes with π-conjugated macromolecular wire was investigated. Scanning tunnelling spectroscopy (STS) studies revealed that the mono-cobalt(II) complex showed a pronounced rectifying effect with a large rectification ratio and finely featured NDR peaks, while the di-cobalt(II) complex showed a relatively symmetric electron transport without clear NDR peaks. The results are explained based on the dipolar and electronic effects.

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Authors and Affiliations

  1. Department of Chemistry and the James Franck Institute, The University of Chicago, Center for Integrative Science, 929 East 57th Street, Chicago, IL, 60637, USA

    Youngu Lee, ShengWen Yuan & LuPing Yu

Authors
  1. Youngu Lee
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  2. ShengWen Yuan
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  3. LuPing Yu
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Correspondence to LuPing Yu.

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Lee, Y., Yuan, S. & Yu, L. Dipolar and electronic effects on charge transport through single transition metal complexes. Sci. China Chem. 54, 410–414 (2011). https://doi.org/10.1007/s11426-010-4206-6

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  • DOI: https://doi.org/10.1007/s11426-010-4206-6

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