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Article

Functional Nano-Metallic Coatings for Solar Cells: Their Theoretical Background and Modeling

by
Witold Aleksander Jacak
Department of Quantum Technology, Institute of Theoretical Physics, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
Coatings 2024, 14(11), 1410; https://doi.org/10.3390/coatings14111410
Submission received: 13 October 2024 / Revised: 28 October 2024 / Accepted: 4 November 2024 / Published: 6 November 2024
(This article belongs to the Special Issue Perovskite Films as Functional Coatings: Synthesis and Applications)

Abstract

We have collected theoretical arguments supporting the functional role of nano-metallic coatings of solar cells, which enhance solar cell efficiency via by plasmon-strengthening the absorption of sun-light photons and reducing the binding energy of photoexcitons. The quantum character of the plasmonic effect related to the absorption of photons (called the optical plasmonic effect) is described in terms of the Fermi golden rule for the quantum transitions of semiconductor-band electrons induced by plasmons from a nano-metallic coating. The plasmonic effect related to the lowering of the exciton binding energy (called the electrical plasmonic effect) is of particular significance for metalized perovskite solar cells and is also characterized in quantum mechanics terms. The coupling between plasmons in nanoparticles from a coating with band electrons in a semiconductor substrate significantly modifies material properties (dielectric functions) both of the particles and the semiconductor, beyond the ability of the classical electrodynamics to describe.
Keywords: metallic nanoparticles; surface plasmons; damping of plasmons; nano-metallic coatings; perovskite solar cells; p-n junction solar cells metallic nanoparticles; surface plasmons; damping of plasmons; nano-metallic coatings; perovskite solar cells; p-n junction solar cells

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MDPI and ACS Style

Jacak, W.A. Functional Nano-Metallic Coatings for Solar Cells: Their Theoretical Background and Modeling. Coatings 2024, 14, 1410. https://doi.org/10.3390/coatings14111410

AMA Style

Jacak WA. Functional Nano-Metallic Coatings for Solar Cells: Their Theoretical Background and Modeling. Coatings. 2024; 14(11):1410. https://doi.org/10.3390/coatings14111410

Chicago/Turabian Style

Jacak, Witold Aleksander. 2024. "Functional Nano-Metallic Coatings for Solar Cells: Their Theoretical Background and Modeling" Coatings 14, no. 11: 1410. https://doi.org/10.3390/coatings14111410

APA Style

Jacak, W. A. (2024). Functional Nano-Metallic Coatings for Solar Cells: Their Theoretical Background and Modeling. Coatings, 14(11), 1410. https://doi.org/10.3390/coatings14111410

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