Optical modulation of molecular conductance

Shreya Battacharyya, Ashley Kibel, Gerdenis Kodis, Paul A. Liddell, Miguel Gervaldo, John Devens Gust, Stuart Lindsay

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

A novel scanning probe microscope stage permits break junction measurements of single molecule conductance while the molecules are illuminated with visible light. We studied a porphyrin-fullerene dyad molecule designed to form a charge separated state on illumination. A significant fraction of illuminated molecules become more conductive, returning to a lower conductance in the dark, suggesting the formation of a long-lived charge separated state on the indium-tin oxide surface. Transient absorption spectra of these molecular layers are consistent with formation of a long-lived charge separated state, a finding with implications for the design of molecular photovoltaic devices.

Original languageEnglish
Pages (from-to)2709-2714
Number of pages6
JournalNano Letters
Volume11
Issue number7
DOIs
Publication statusPublished - Jul 13 2011

Fingerprint

Light modulation
light modulation
Molecules
molecules
Fullerenes
Porphyrins
Tin oxides
porphyrins
indium oxides
Indium
tin oxides
fullerenes
Absorption spectra
Microscopes
Lighting
illumination
microscopes
Scanning
absorption spectra
scanning

Keywords

  • charge-separated states
  • indium tin oxide
  • Molecular electronics
  • molecular photovoltaics
  • optoelectronics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Battacharyya, S., Kibel, A., Kodis, G., Liddell, P. A., Gervaldo, M., Gust, J. D., & Lindsay, S. (2011). Optical modulation of molecular conductance. Nano Letters, 11(7), 2709-2714. https://doi.org/10.1021/nl200977c

Optical modulation of molecular conductance. / Battacharyya, Shreya; Kibel, Ashley; Kodis, Gerdenis; Liddell, Paul A.; Gervaldo, Miguel; Gust, John Devens; Lindsay, Stuart.

In: Nano Letters, Vol. 11, No. 7, 13.07.2011, p. 2709-2714.

Research output: Contribution to journalArticle

Battacharyya, S, Kibel, A, Kodis, G, Liddell, PA, Gervaldo, M, Gust, JD & Lindsay, S 2011, 'Optical modulation of molecular conductance', Nano Letters, vol. 11, no. 7, pp. 2709-2714. https://doi.org/10.1021/nl200977c
Battacharyya S, Kibel A, Kodis G, Liddell PA, Gervaldo M, Gust JD et al. Optical modulation of molecular conductance. Nano Letters. 2011 Jul 13;11(7):2709-2714. https://doi.org/10.1021/nl200977c
Battacharyya, Shreya ; Kibel, Ashley ; Kodis, Gerdenis ; Liddell, Paul A. ; Gervaldo, Miguel ; Gust, John Devens ; Lindsay, Stuart. / Optical modulation of molecular conductance. In: Nano Letters. 2011 ; Vol. 11, No. 7. pp. 2709-2714.
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