@article{20529,
  abstract     = {Single molecules bridging two metallic electrodes can emit light through electroluminescence when subjected to a bias voltage. Typically, light emission in such devices results from transitions between molecular states, although in the presence of light-matter coupling, the emission can result from a transition between hybrid light-matter states. Here, we create single metal-molecule-metal junctions and simultaneously collect conductance and electroluminescence data using a scanning tunneling microscope (STM) equipped with a custom spectrometer. Through experimental analysis and electronic structure calculations, we provide evidence for a molecule-electrode interfacial exciton coupled to a junction cavity plasmon. Importantly, we find that close to resonant transport conditions, the molecular junction functions as a single emitter that is strongly coupled to the junction cavity mode, leading to characteristic Rabi splitting of the emission spectrum and providing the first example of an electroluminescence-driven single-molecule system in the regime of strong light-matter coupling.},
  author       = {Paoletta, Angela L. and Hoffmann, Norah M. and Cheng, Daniel W. and York, Emma and Xu, Ding and Zhang, Boyuan and Delor, Milan and Berkelbach, Timothy C. and Venkataraman, Latha},
  issn         = {1520-5126},
  journal      = {Journal of the American Chemical Society},
  number       = {50},
  pages        = {34394--34400},
  publisher    = {American Chemical Society},
  title        = {{Plasmon-exciton strong coupling in single-molecule junction electroluminescence}},
  doi          = {10.1021/jacs.4c09782},
  volume       = {146},
  year         = {2024},
}