Energy harvesting

Latest Research and Reviews

News and Comment

  • News and Views |

    The compressive buckling of lithographically defined, two-dimensional patterns can create three-dimensional piezoelectric microsystems with a range of potential applications.

    • Ghazaleh Haghiashtiani
    •  & Michael C. McAlpine
  • News and Views |

    Efficient conversion of low-grade heat into useful power is a challenge. A new approach using magnetocaloric materials and a pretzel-like magnetic field topology offers a simple way of generating electrical power from heat with improved efficiency.

    • A. M. Rowe
    Nature Energy 4, 12-13
  • Comments and Opinion | | open

    When translating photovoltaic technology from laboratory to commercial products, low cost, high power conversion efficiency, and high stability (long lifetime) are the three key metrics to consider in addition to other factors, such as low toxicity, low energy payback time, etc. As one of the most promising photovoltaic materials with high efficiency, today organic–inorganic metal halide perovskites draw tremendous attention from fundamental research, but their practical relevance still remains unclear owing to the notorious short device operation time. In this comment, we discuss the stability issue of perovskite photovoltaics and call for standardized protocols for device characterizations that could possibly match the silicon industrial standards.

    • Lei Meng
    • , Jingbi You
    •  & Yang Yang
  • News and Views |

    One third of industrial processes occur at high temperatures above 1300 K, but current methods of waste heat recovery at these temperatures are limited. Now, reduced graphene oxide is shown to be a highly efficient and reliable thermoelectric material up to 3000 K.

    • Gabi Schierning
    Nature Energy 3, 92-93
  • News and Views |

    Biological photovoltaic devices (BPVs) use photosynthetic microorganisms to produce electricity, but low photocurrent generation impedes their application. Now, a micro-scale flow-based BPV system is reported with power density outputs similar to that of large-scale biofuels.

    • Matteo Grattieri
    •  & Shelley D. Minteer
    Nature Energy 3, 8-9