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Article

Spectral Control by Silver Nanoparticle-Based Metasurfaces for Mitigation of UV Degradation in Perovskite Solar Cells

by
Silvia Delgado-Rodríguez
1,*,
Eva Jaldo Serrano
1,
Mahmoud H. Elshorbagy
2,3,
Javier Alda
3,
Gonzalo del Pozo
1 and
Alexander Cuadrado
1,*
1
Departamento de Tecnología Electrónica, Universidad Rey Juan Carlos, 28933 Madrid, Spain
2
Physics Department, Faculty of Science, Minia University, El Minia 61519, Egypt
3
Departamento de Óptica, Universidad Complutense de Madrid, 28037 Madrid, Spain
*
Authors to whom correspondence should be addressed.
Nanomaterials 2024, 14(19), 1582; https://doi.org/10.3390/nano14191582
Submission received: 17 August 2024 / Revised: 9 September 2024 / Accepted: 18 September 2024 / Published: 30 September 2024

Abstract

Perovskite solar cells are considered to be one of the most promising solar cell designs in terms of photovoltaic efficiency. However, their practical deployment is strongly affected by their short lifetimes, mostly caused by environmental conditions and UV degradation. In this contribution, we present a metasurface made of silver nanoparticles used as a UV filter on a perovskite solar cell. The UV-blocking layer was fabricated and morphologically and compositionally analyzed. Its optical response, in terms of optical transmission, was also experimentally measured. These results were compared with simulations made through the use of a well-proven computational electromagnetism model. After analyzing the discrepancies between the experimental and simulated results and checking those obtained from electron beam microscopy and electron dispersion spectroscopy, we could see that a residue from fabrication, sodium citrate, strongly modified the optical response of the system, generating a redshift of about 50 nm. Then, we proposed and simulated the optical behavior of core–shell nanoparticles made of silver and silica. The calculated spectral absorption at the active perovskite layer shows how the appropriate selection of the geometrical parameters of these core–shell particles is able to tune the absorption at the active layer by removing a significant portion of the UV band and reducing the absorption of the active layer from 90% to 5% at a resonance wavelength of 403 nm.
Keywords: perovskite solar cells; UV degradation; metasurfaces; core–shell nanoparticles; computational electromagnetism perovskite solar cells; UV degradation; metasurfaces; core–shell nanoparticles; computational electromagnetism

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MDPI and ACS Style

Delgado-Rodríguez, S.; Jaldo Serrano, E.; Elshorbagy, M.H.; Alda, J.; del Pozo, G.; Cuadrado, A. Spectral Control by Silver Nanoparticle-Based Metasurfaces for Mitigation of UV Degradation in Perovskite Solar Cells. Nanomaterials 2024, 14, 1582. https://doi.org/10.3390/nano14191582

AMA Style

Delgado-Rodríguez S, Jaldo Serrano E, Elshorbagy MH, Alda J, del Pozo G, Cuadrado A. Spectral Control by Silver Nanoparticle-Based Metasurfaces for Mitigation of UV Degradation in Perovskite Solar Cells. Nanomaterials. 2024; 14(19):1582. https://doi.org/10.3390/nano14191582

Chicago/Turabian Style

Delgado-Rodríguez, Silvia, Eva Jaldo Serrano, Mahmoud H. Elshorbagy, Javier Alda, Gonzalo del Pozo, and Alexander Cuadrado. 2024. "Spectral Control by Silver Nanoparticle-Based Metasurfaces for Mitigation of UV Degradation in Perovskite Solar Cells" Nanomaterials 14, no. 19: 1582. https://doi.org/10.3390/nano14191582

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