Hyperuniform disordered structures for selective solar and solar-thermal absorbers

M. Florescu

doi:10.1117/12.3025232

18 June 2024 Hyperuniform disordered structures for selective solar and solar-thermal absorbers

M. Florescu

Proceedings Volume 13014, Photonics for Solar Energy Systems X; 1301402 (2024) https://doi.org/10.1117/12.3025232
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We explore the ability of hyperuniform disordered structures to enhance light absorption in thin-film solar cells architectures and perform full electromagnetic wave simulations that unveil light trapping techniques capable to attain large absorption enhancements up 85% over the visible spectrum. We predicate this enhancement to the interplay between two key physical phenomena: ultimate control over the light diffraction via a hyperuniformly-patterned surface layer which results in a highly efficient coupling of light to the quasi-guided modes of the absorbing silicon film and a concomitant minimisation of the reflection losses atop of the solar absorber. Our experimental results further validate this approach, showcasing an impressive 65% enhancement in solar light absorption in a freely suspended 1-μm c-Si membrane across the spectral range from 400 to 1050nm. We also explore applications of hyperuniform disordered architectures to high-efficiency solar-thermal absorbers.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

M. Florescu "Hyperuniform disordered structures for selective solar and solar-thermal absorbers", Proc. SPIE 13014, Photonics for Solar Energy Systems X, 1301402 (18 June 2024); https://doi.org/10.1117/12.3025232

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