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Numerical and Experimental Investigation of Nanostructure-Based Asymmetric Light Transmission Interfaces for Solar Concentrator Applications

Author

Listed:
  • Vincent Oliveto

    (Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA)

  • Michael Hughes

    (Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA)

  • Duncan E. Smith

    (Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA)

  • Diana-Andra Borca-Tasciuc

    (Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA)

Abstract

Research in asymmetric light transmission interfaces has been recently gaining traction. While traditionally considered for optical circuitry applications, there is a new interest to use these interfaces in luminescent solar concentrators. Previous studies have shown that applying them to the top surface of a concentrator could mitigate surface losses. This paper presents experimental results for proof-of-concept asymmetric light transmission interfaces that may have potential applications in luminescent solar concentrators. The interfaces and the underneath substrate were created in a single step from polydimethylsiloxane using silicon molds fabricated on <100> wafers via anisotropic wet etching. The resulting structures were pyramidal in shape. Large surface areas of nanostructures repeating at 800 nm, 900 nm, and 1000 nm were tested for backward and forward transmission using a spectrometer. Results showed a 21%, 10%, and 0% average transmissivity difference between the forward and backward directions for each periodicity, respectively. The trends seen experimentally were confirmed numerically via COMSOL simulations.

Suggested Citation

  • Vincent Oliveto & Michael Hughes & Duncan E. Smith & Diana-Andra Borca-Tasciuc, 2022. "Numerical and Experimental Investigation of Nanostructure-Based Asymmetric Light Transmission Interfaces for Solar Concentrator Applications," Energies, MDPI, vol. 15(21), pages 1-11, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8175-:d:960827
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    References listed on IDEAS

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    1. Hughes, Michael D. & Smith, Duncan E. & Borca-Tasciuc, Diana-Andra, 2020. "Performance of wedge-shaped luminescent solar concentrators employing phosphor films and annual energy estimation case studies," Renewable Energy, Elsevier, vol. 160(C), pages 513-525.
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