Browse Articles

  • Article |

    Organic solar cells can be thin, bendable and strechable. Now, Jinno et al. develop flexible organic photovoltaic devices that can also be washed in water and detergent, opening future integration routes into everyday objects such as fabric.

    • Hiroaki Jinno
    • , Kenjiro Fukuda
    • , Xiaomin Xu
    • , Sungjun Park
    • , Yasuhito Suzuki
    • , Mari Koizumi
    • , Tomoyuki Yokota
    • , Itaru Osaka
    • , Kazuo Takimiya
    •  & Takao Someya
  • Article |

    Hydropower represents the largest source of renewable energy currently available, yet its potential provision remains poorly characterized. Gernaat et al. present a high-resolution global assessment of technical and economic hydropower potential based on an analysis of over 3.8 million individual locations.

    • David E. H. J. Gernaat
    • , Patrick W. Bogaart
    • , Detlef P. van Vuuren
    • , Hester Biemans
    •  & Robin Niessink
  • News and Views |

    Light-weight and stretchable, organic photovoltaics offer unique integration prospects. Now, organic solar cells and modules can also be washed while maintaining good photoconversion efficiencies.

    • Ning Li
    •  & Christoph J. Brabec
  • Editorial |

    Energy models provide powerful insights for decision-makers, but more care is needed around the choice of reference scenarios and the transparency of assumptions.

  • News and Views |

    Environmental heat sinks beyond local air are available for use with normal air conditioners to increase their efficiency. A study has exploited outer space and the atmosphere as remote sinks to demonstrate daytime sub-ambient fluid cooling and its application in reducing the energy needed to cool an interior.

    • Geoff Smith
    •  & Angus Gentle
  • Article |

    Radiative sky cooling passively rejects heat from a surface out into space via an atmospheric transparency window, enabling sub-ambient cooling. Goldstein et al. exploit this to show daytime cooling of water by up to 5 C below ambient temperature, equivalent to a heat rejection flux of 70 Wm−2.

    • Eli A. Goldstein
    • , Aaswath P. Raman
    •  & Shanhui Fan
  • Perspective |

    Despite being currently under-represented in IPCC reports, PV generation represents a growing share of power generation. This Perspective argues that underestimating PV potential led to suboptimal integration measures and that specific deployment strategies for emerging economies should be developed.

    • Felix Creutzig
    • , Peter Agoston
    • , Jan Christoph Goldschmidt
    • , Gunnar Luderer
    • , Gregory Nemet
    •  & Robert C. Pietzcker
  • Article |

    To improve the efficiency of photovoltaic devices while keeping the same spatial footprint, solar cells can be stacked on top of each other. Here, Essig et al. fabricate very efficient dual-junction and triple-junction solar cells by placing one or two III–V solar cells on top of a silicon solar cell.

    • Stephanie Essig
    • , Christophe Allebé
    • , Timothy Remo
    • , John F. Geisz
    • , Myles A. Steiner
    • , Kelsey Horowitz
    • , Loris Barraud
    • , J. Scott Ward
    • , Manuel Schnabel
    • , Antoine Descoeudres
    • , David L. Young
    • , Michael Woodhouse
    • , Matthieu Despeisse
    • , Christophe Ballif
    •  & Adele Tamboli
  • Comment |

    The Trump administration's domestic plans would have curtailed the nation's climate action even if it had stayed in the Paris Agreement. Yet, the decision to leave the agreement undermines US international energy and climate leadership and the prospects of ramping up global climate policy ambition.

    • Jason Bordoff
  • Analysis |

    Clean energy sources bring environmental and health benefits by reducing traditional electricity sources. Millstein et al. analyse data from 2007–2015 on the expansion of solar and wind power in the US to explore impacts in terms of air pollution, avoided emissions and associated premature mortality.

    • Dev Millstein
    • , Ryan Wiser
    • , Mark Bolinger
    •  & Galen Barbose
  • Article |

    Various strategies are developed to combine high efficiency and stability in perovskite solar cells. Here, Wang et al. mix 2D and 3D mixed-cation and mixed-halide perovskite phases in solar cells with stabilized efficiencies up to 19.5% and improved stability under full illumination and ambient air.

    • Zhiping Wang
    • , Qianqian Lin
    • , Francis P. Chmiel
    • , Nobuya Sakai
    • , Laura M. Herz
    •  & Henry J. Snaith
  • Editorial |

    Recent large-scale carbon-capture schemes in the energy sector point to progress, but further development and support are still required to improve viability and widespread deployment.

  • Comment |

    The structure of active sites of enzymes involved in bioenergetic processes can inspire design of active, stable and cost-effective catalysts for renewable-energy technologies. For these materials to reach maturity, the benefits of bioinspired systems must be combined with practical technological requirements.

    • Vincent Artero
  • News and Views |

    The utilization of porous carbon cathodes in lithium–air batteries is hindered by their severe decomposition during battery cycling. Now, dual redox mediators are shown to decouple the complex electrochemical reactions at the cathode, avoiding cathode passivation and decomposition.

    • Ji-Jing Xu
    •  & Xin-Bo Zhang
  • Article |

    Electricity storage will benefit from both R&D and deployment policy. This study shows that a dedicated programme of R&D spending in emerging technologies should be developed in parallel to improve safety and reduce overall costs, and in order to maximize the general benefit for the system.

    • Noah Kittner
    • , Felix Lill
    •  & Daniel M. Kammen
  • Article |

    Metal dichalcogenides are promising electrocatalysts for hydrogen evolution, but more active and stable materials are desired. Here the authors demonstrate that H-TaS2 and H-NbS2 possess high basal-plane activity that increases with cycling through changes in the morphology of the catalysts.

    • Yuanyue Liu
    • , Jingjie Wu
    • , Ken P. Hackenberg
    • , Jing Zhang
    • , Y. Morris Wang
    • , Yingchao Yang
    • , Kunttal Keyshar
    • , Jing Gu
    • , Tadashi Ogitsu
    • , Robert Vajtai
    • , Jun Lou
    • , Pulickel M. Ajayan
    • , Brandon C. Wood
    •  & Boris I. Yakobson