• Featured in Physics
  • Editors' Suggestion

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, and Guillaume Schull
Phys. Rev. Lett. 112, 047403 – Published 28 January 2014
Physics logo See Synopsis: A Single-Molecule Light-Emitting Diode
PDFHTMLExport Citation

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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 27 September 2013

DOI:https://doi.org/10.1103/PhysRevLett.112.047403

© 2014 American Physical Society

Synopsis

Key Image

A Single-Molecule Light-Emitting Diode

Published 28 January 2014

Light emitted as electrical current flows through an organic polymer molecule stretched between a metal tip and surface.

See more in Physics

Authors & Affiliations

Gaël Reecht1, Fabrice Scheurer1, Virginie Speisser1, Yannick J. Dappe2, Fabrice Mathevet3, and Guillaume Schull1,*

  • 1Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 (CNRS—Université de Strasbourg), 67034 Strasbourg, France
  • 2SPEC (CNRS URA2464), SPCSI, IRAMIS, CEA Saclay, 91191 Gif-Sur-Yvette, France
  • 3Laboratoire de Chimie des Polymères, UMR 7610 (CNRS—Université Pierre et Marie Curie), 75252 Paris, France

  • *guillaume.schull@ipcms.unistra.fr

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 112, Iss. 4 — 31 January 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×