Victor O. Leshyk

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Latest Research

  • Article |

    Realization of the full potential of Li–S batteries requires effective methods to treat problems associated with both sulfur cathodes and lithium anodes. Here, the authors report suppression of electrolyte depletion and dendrite formation in Li–S batteries by tuning the solvent/salt molar ratio in a diglyme electrolyte to favour quasi-solid state conversion.

    • Quan Pang
    • , Abhinandan Shyamsunder
    • , Badri Narayanan
    • , Chun Yuen Kwok
    • , Larry A. Curtiss
    •  & Linda F. Nazar
  • Article |

    Metal halide perovskites offer the potential for high-efficiency, low-fabrication-cost solar cells. This study now explores their prospects if deployed in concentrator photovoltaics and finds they perform well up to a concentration of 53 Suns and retain good stability under 10 Suns for over 150 h.

    • Zhiping Wang
    • , Qianqian Lin
    • , Bernard Wenger
    • , M. Greyson Christoforo
    • , Yen-Hung Lin
    • , Matthew T. Klug
    • , Michael B. Johnston
    • , Laura M. Herz
    •  & Henry J. Snaith
  • Article |

    Non-radiative recombination is a critical limiting factor for perovskite solar cell performance. Stolterfoht et al. visualize the various recombination pathways in planar pin cells with photoluminescence imaging and use it to design improved solar cells with 1 cm2 areas and ~20% efficiency.

    • Martin Stolterfoht
    • , Christian M. Wolff
    • , José A. Márquez
    • , Shanshan Zhang
    • , Charles J. Hages
    • , Daniel Rothhardt
    • , Steve Albrecht
    • , Paul L. Burn
    • , Paul Meredith
    • , Thomas Unold
    •  & Dieter Neher
  • Article |

    One way to overcome the theoretical efficiency limit of silicon photovoltaics is to use them as the bottom cell in a tandem photovoltaic module. Here a model for tandem module efficiency and cost is presented, based on assumed sub-cell efficiencies and costs, and used to examine possible paths for different tandem markets.

    • Zhengshan J. Yu
    • , Joe V. Carpenter III
    •  & Zachary C. Holman
  • Article |

    Although Pt is highly active for electrocatalytic production of H2 from water, its cost limits its wide application. Here, the authors prepare a high-performing catalyst that is supported on graphitic tubes, containing Fe, Co and Cu, and requires only a small amount of Pt.

    • Jitendra N. Tiwari
    • , Siraj Sultan
    • , Chang Woo Myung
    • , Taeseung Yoon
    • , Nannan Li
    • , Miran Ha
    • , Ahmad M. Harzandi
    • , Hyo Ju Park
    • , Dong Yeon Kim
    • , S. Selva Chandrasekaran
    • , Wang Geun Lee
    • , Varun Vij
    • , Hoju Kang
    • , Tae Joo Shin
    • , Hyeon Suk Shin
    • , Geunsik Lee
    • , Zonghoon Lee
    •  & Kwang S. Kim
  • Article |

    Voltage decay is a major problem in applications of high-energy Li- and Mn-rich layer-structured battery materials. Here, the authors report the evolution of redox couples as the origin of the voltage decay and discuss strategies to suppress the problem.

    • Enyuan Hu
    • , Xiqian Yu
    • , Ruoqian Lin
    • , Xuanxuan Bi
    • , Jun Lu
    • , Seongmin Bak
    • , Kyung-Wan Nam
    • , Huolin L. Xin
    • , Cherno Jaye
    • , Daniel A. Fischer
    • , Kahlil Amine
    •  & Xiao-Qing Yang

News & Comment

  • Editorial |

    Increased local energy generation may offer a route to meet climate targets while empowering community groups, but care is still needed to support those vulnerable to energy system change.

  • News & Views |

    Renewable portfolio standards in the United States are widely recognized as a significant state-level instrument to catalyse growth in renewables. Comprehensive analysis now shows that the effectiveness of these standards depends on their stringency, with more demanding standards leading to higher renewable penetration.

    • Nikolay Anguelov

Focus

Photovoltaic scale-up and deployment

Antal Thoma, CSEM

Photovoltaic scale-up and deployment

This Focus examines some of the challenges in scaling-up photovoltaic technologies from the laboratory to the real world and explores upcoming deployment routes.