2014/01/10 by Gaël Reecht, Fabrice Scheurer, Reecht, Gaël +9
Engineering · Physics and Astronomy · #FOS: Physical sciences #Force Microscopy Techniques and Applications #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Molecular Junctions and Nanostructures #Nanofabrication and Lithography Techniques #cond-mat.mes-hall
paper · pdf · doi:10.48550/arxiv.1401.2322
to be published in Physical Review Letters
arxiv created 2014/01/10 · openalex publication_date 2014/01/10 · arxiv updated 2014/01/13 · openalex created_date 2022/08/31 · openalex updated_date 2026/07/28
The electroluminescence of a polythiophene wire suspended between two metallic electrodes is probed using a scanning tunneling microscope. 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.