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  • News and Views |

    Startups funded by the US Advanced Research Projects Agency – Energy filed patents at twice the rate of similar cleantech firms. The high-risk high-reward funding model has succeeded in advancing energy technology, but more is needed to help these innovative firms cross the valley of death and bring new cleantech products to market.

    • Anna Goldstein
    • , Claudia Doblinger
    • , Erin Baker
    •  & Laura Díaz Anadón
  • News and Views |

    The landscape of the global clean energy industry is transforming, with many technology-following firms in developing countries rapidly catching up to — and potentially poised to overtake — leaders in the developed world. New analysis reveals a clearer picture of this changing geography of clean energy value chains over time.

    • Stine Haakonsson
  • News and Views |

    Non-fullerene acceptors have enabled record power conversion efficiencies in organic solar cells, but it is unclear how they achieve efficient electron–hole separation. New research shows that extremely long exciton lifetimes are essential to ensure that charges are generated efficiently.

    • Tracey M. Clarke
    Nature Energy 5, 644-645
  • Editorial |

    In this interconnected world, many of us would regularly jump on a plane, or train, for a weekend away, or into a car to pop to the shops or to visit family and friends. But the way we travel, day-to-day and on longer trips, will need to change if mitigation targets, including net-zero aspirations, are to be met.

  • News and Views |

    Photocatalytic systems for CO2 conversion to fuels tend to suffer from low selectivity, and sacrificial reagents or external bias are often required to make the reaction work. Now, a wireless and stand-alone photocatalyst device is demonstrated that converts CO2 and water into formate and O2 using solar energy without external bias.

    • Tuo Wang
    •  & Jinlong Gong
    Nature Energy 5, 642-643