Quantum dots

Quantum dots are crystals of a fluorescent semiconductor material with a diameter of as few as 10 to 100 atoms (2-10 nm). They are used as labels for imaging molecules because of their very narrow fluorescence spectra, brightness and resistance to photobleaching.

Latest Research and Reviews

News and Comment

  • News and Views |

    A magnetic-field-dependent spectroscopy study on single perovskite nanocrystals reveals the spectral signatures of an exciton dark state below the bright triplet states.

    • Andries Meijerink
    •  & Freddy T. Rabouw
    Nature Materials 18, 660-661
  • News and Views |

    A semiconductor quantum dot that generates polarization-entangled photon pairs on demand has been realized, marking an important milestone for scalable integrated quantum photonics and information processing.

    • Igor Aharonovich
    Nature Nanotechnology 14, 502-503
  • News and Views |

    Through stochastic resonance, noise-driven fluctuations make an otherwise weak periodic signal accessible. Experiments have now reported quantum stochastic resonance, which arises from intrinsic quantum fluctuations rather than external noise.

    • Stefan Ludwig
    Nature Physics 15, 310-311