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  • News and Views |

    While recent gains in the efficiency of photoelectrochemical devices for hydrogen production are encouraging, high efficiency is rarely combined with high power output, which is important for large-scale viability. Towards this goal, researchers now demonstrate a promising thermally integrated device driven by concentrated solar irradiation.

    • Tomas Edvinsson
    Nature Energy 4, 354-355
  • News and Views |

    Organic donor–acceptor heterojunctions can show efficient electroluminescence and at the same time generate charges under photovoltaic operation.

    • Wolfgang Brütting
    Nature Materials 18, 432-433
  • News and Views |

    The observation of a room-temperature stable liquid phase of electrons and holes in a quasi-two-dimensional photocell paves the way towards optoelectronic devices that harness collective phenomena.

    • Stéphane Berciaud
    Nature Photonics 13, 225-226
  • News and Views |

    Impulsive Raman spectroscopy reveals how atoms are pushed into action by light absorption. The surprising sensitivity of this behaviour to the polaronic character of 2D perovskites opens up new avenues for tailored light–matter interactions.

    • Christoph Schnedermann
    • , Akshay Rao
    •  & Philipp Kukura
    Nature Materials 18, 307-308