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Electrically driven photon antibunching from a single molecule at room temperature

Author

Listed:
  • Maximilian Nothaft

    (3rd Physics Institute and Research Center SCoPE, University of Stuttgart)

  • Steffen Höhla

    (Institute for Large Area Microelectronics and Research Center SCoPE, University of Stuttgart)

  • Fedor Jelezko

    (Institute for Quantum Optics, University of Ulm)

  • Norbert Frühauf

    (Institute for Large Area Microelectronics and Research Center SCoPE, University of Stuttgart)

  • Jens Pflaum

    (Experimental Physics VI, University of Würzburg and ZAE Bayern)

  • Jörg Wrachtrup

    (3rd Physics Institute and Research Center SCoPE, University of Stuttgart)

Abstract

Single-photon emitters have been considered for applications in quantum information processing, quantum cryptography and metrology. For the sake of integration and to provide an electron photon interface, it is of great interest to stimulate single-photon emission by electrical excitation as demonstrated for quantum dots. Because of low exciton binding energies, it has so far not been possible to detect sub-Poissonian photon statistics of electrically driven quantum dots at room temperature. However, organic molecules possess exciton binding energies on the order of 1 eV, thereby facilitating the development of an electrically driven single-photon source at room temperature in a solid-state matrix. Here we demonstrate electroluminescence of single, electrically driven molecules at room temperature. By careful choice of the molecular emitter, as well as fabrication of a specially designed organic light-emitting diode structure, we were able to achieve stable single-molecule emission and detect sub-Poissonian photon statistics.

Suggested Citation

  • Maximilian Nothaft & Steffen Höhla & Fedor Jelezko & Norbert Frühauf & Jens Pflaum & Jörg Wrachtrup, 2012. "Electrically driven photon antibunching from a single molecule at room temperature," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1637
    DOI: 10.1038/ncomms1637
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