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Showing 1–2 of 2 results
Advanced filters: Author: P. Rudquist Clear advanced filters

  • Photon upconversion can be used to harvest low energy photons, which are otherwise lost in solar cells. Here, Börjesson et al. use a well-oriented liquid crystal matrix to host the upconversion system in order to emit upconverted photons in a preferential direction, where the solar cells would be located.

    • K. Börjesson
    • P. Rudquist
    • K. Moth-Poulsen
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • Zero-energy flat bands indicate topological origin but their presence is usually energetically unfavorable. Here, Holmvall et al. propose an order parameter to quantify a phase transition associated with exotic topological properties in high-temperature superconductors hosting such flat bands.

    • P. Holmvall
    • A. B. Vorontsov
    • T. Löfwander
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-11