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Perovskite Quantum Dot Luminescent Solar Concentrators with Record Power Conversion Efficiency

Giulia Rossi , Zhiqiang Liu
Published: 2026-05-22 DOI: doi.org/10.55001/jams.v1i3.74 https://doi.org/10.55001/jams.v1i3.74 Vol. 1 No. 3 (2026)
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Abstract

Luminescent solar concentrators (LSCs) can harvest diffuse sunlight over large areas and guide it to small edge-mounted photovoltaic cells, enabling building-integrated photovoltaics. We report CsPbBr₁.₅I₁.₅ perovskite quantum dots (PQDs) encapsulated in a UV-cured polymer matrix achieving a record 8.1% optical power efficiency for a 400 cm² LSC panel. The large Stokes shift (108 nm) minimizes reabsorption losses, while silica-shell passivation extends operational stability to over 3,000 hours under 1-sun illumination. Ray-tracing simulations validated by experimental data project 6.2% system efficiency when coupled with GaAs micro-cells.

Author Biographies

  • Giulia Rossi Department of Materials Science, Politecnico di Milano, 20133 Milan, Italy
    Giulia Rossi is an associate professor at Department of Materials Science, Politecnico di Milano, 20133 Milan, Italy. Their research focuses on machine learning, with over 37 publications in peer-reviewed journals.
  • Zhiqiang Liu State Key Laboratory of Luminescent Materials, South China University of Technology, Guangzhou 510641, China
    Zhiqiang Liu is an associate professor at State Key Laboratory of Luminescent Materials, South China University of Technology, Guangzhou 510641, China. Their research focuses on biomedical engineering, with over 29 publications in peer-reviewed journals.
JAMS Vol. 1, No. 3, 2026
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Authors

  • Giulia Rossi Department of Materials Science, Politecnico di Milano, 20133 Milan, Italy
  • Zhiqiang Liu State Key Laboratory of Luminescent Materials, South China University of Technology, Guangzhou 510641, China

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