Electroluminescence of a polythiophene molecular wire suspended between a metallic surface and the tip of a scanning tunneling microscope

Gaël Reecht, Fabrice Scheurer, Virginie Speisser, Yannick J. Dappe, Fabrice Mathevet, Guillaume Schull

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    99 Citations (Scopus)

    Abstract

    The electroluminescence of a polythiophene wire suspended between a metallic surface and the tip of a scanning tunneling microscope is reported. Under positive sample voltage, the spectral and voltage dependencies of the emitted light are consistent with the fluorescence of the wire junction mediated by localized plasmons. This emission is strongly attenuated for the opposite polarity. Both emission mechanism and polarity dependence are similar to what occurs in organic light emitting diodes (OLED) but at the level of a single molecular wire.

    Original languageEnglish
    Article number047403
    JournalPhysical review letters
    Volume112
    Issue number4
    DOIs
    Publication statusPublished - Jan 28 2014

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

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