Energy harvesting articles within Nature

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  • Article
    | Open Access

    A study introduces a novel method to grow single-crystal Cu2O thin films with selected crystal orientations, highlighting enhanced bulk carrier mobility and carrier diffusion length along the [111] direction that yields Cu2O photocathodes with improved performance.

    • Linfeng Pan
    • , Linjie Dai
    •  & Samuel D. Stranks

  • Article |

    Lead-free perovskite light-emitting diodes (LEDs) prepared using tautomeric mixture coordination provide improved ordering in the crystal structure, reduced recombination and enhanced exciton binding energy compared with lead-containing perovskite-based LEDs.

    • Dongyuan Han
    • , Jie Wang
    •  & Ning Wang

  • Article
    | Open Access

    Using a heralded single-photon source along with coincidence counting, we establish time correlation functions for B800 excitation and B850 fluorescence emission and demonstrate that both events involve single photons.

    • Quanwei Li
    • , Kaydren Orcutt
    •  & K. Birgitta Whaley

  • Article |

    In situ grazing-incidence wide-angle X-ray diffraction and scanning electron microscopy were used to evaluate the crystallization process and surface morphology of perovskite thin films coated with alkylammonium chlorides, which were used to fabricate high-efficiency perovskite solar cells.

    • Jaewang Park
    • , Jongbeom Kim
    •  & Sang Il Seok

  • Article |

    Using a stable and viscosity-tunable perovskite ink, a hybrid perovskite thin-film photovoltaic device can be deposited by the screen-printing method, which exhibits higher efficiency compared with previously investigated techniques.

    • Changshun Chen
    • , Jianxin Chen
    •  & Wei Huang

  • Article
    | Open Access

    A macroscopic and scalable pyroelectric energy harvester in the form of multilayer capacitors produces 11.2 J of electrical energy, with a pyroelectric material generating up to 4.43 J cm−3 per cycle.

    • Pierre Lheritier
    • , Alvar Torelló
    •  & Emmanuel Defay

  • Article
    | Open Access

    Two-junction TPV cells with efficiencies of more than 40% are reported, using an emitter with a temperature between 1,900 and 2,400 °C, for integration into a TPV system for thermal energy grid storage.

    • Alina LaPotin
    • , Kevin L. Schulte
    •  & Asegun Henry

  • Article |

    Incorporation of the pseudo-halide anion formate during the fabrication of α-FAPbI3 perovskite films eliminates deleterious iodide vacancies, yielding solar cell devices with a certified power conversion efficiency of 25.21 per cent and long-term operational stability.

    • Jaeki Jeong
    • , Minjin Kim
    •  & Jin Young Kim

  • Article |

    An improved device design for perovskite-based photovoltaic cells enables a certified power conversion efficiency of 25.2 per cent, translating to 80.5 per cent of the thermodynamic limit for its bandgap, which approaches those achieved by silicon solar cells.

    • Jason J. Yoo
    • , Gabkyung Seo
    •  & Jangwon Seo

  • Article |

    An air gap embedded within the structure of a thermophotovoltaic device acts as a near-perfect reflector of low-energy photons, resulting in their recovery and recycling by the thermal source, enabling excellent power-conversion efficiency.

    • Dejiu Fan
    • , Tobias Burger
    •  & Stephen R. Forrest

  • Article |

    A new type of energy-harvesting device, based on protein nanowires from the microbe Geobacter sulforreducens, can generate a sustained power output by producing a moisture gradient across the nanowire film using natural humidity.

    • Xiaomeng Liu
    • , Hongyan Gao
    •  & Jun Yao

  • Letter |

    A bulk photovoltaic effect is observed in devices based on tungsten disulfide, and is enhanced if the devices take the form of polar nanotubes, showing the importance of reducing crystal symmetry to a polar structure in achieving higher efficiencies.

    • Y. J. Zhang
    • , T. Ideue
    •  & Y. Iwasa

  • Letter |

    Thin-film solar cells were fabricated using layered two-dimensional perovskites with near-single-crystalline out-of-plane alignment, which facilitates efficient charge transport leading to greatly improved power conversion efficiency with technologically relevant stability to light exposure, humidity and heat stress.

    • Hsinhan Tsai
    • , Wanyi Nie
    •  & Aditya D. Mohite

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