Effects of photon recycling and scattering in high-performance perovskite solar cells

Efficient external radiation is essential for solar cells to achieve high power conversion efficiency (PCE). The classical limit of 1/2n(2) (n, refractive index) for electroluminescence quantum efficiency (ELQE) has recently been approached by perovskite solar cells (PSCs). Photon recycling (PR) and...

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Autores principales: Cho, Changsoon, Jang, Yeoun-Woo, Lee, Seungmin, Vaynzof, Yana, Choi, Mansoo, Noh, Jun Hong, Leo, Karl
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2021
Materias:
Physical and Materials Sciences
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8694589/
https://www.ncbi.nlm.nih.gov/pubmed/34936442
http://dx.doi.org/10.1126/sciadv.abj1363
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author Cho, Changsoon
Jang, Yeoun-Woo
Lee, Seungmin
Vaynzof, Yana
Choi, Mansoo
Noh, Jun Hong
Leo, Karl
author_facet Cho, Changsoon
Jang, Yeoun-Woo
Lee, Seungmin
Vaynzof, Yana
Choi, Mansoo
Noh, Jun Hong
Leo, Karl
author_sort Cho, Changsoon
collection PubMed
description Efficient external radiation is essential for solar cells to achieve high power conversion efficiency (PCE). The classical limit of 1/2n(2) (n, refractive index) for electroluminescence quantum efficiency (ELQE) has recently been approached by perovskite solar cells (PSCs). Photon recycling (PR) and light scattering can provide an opportunity to surpass this limit. We investigate the role of PR and scattering in practical device operation using a radiative PSC with an ELQE (13.7% at 1 sun) that significantly surpasses the classical limit (7.4%). We experimentally analyze the contributions of PR and scattering to this strong radiation. A novel optical model reveals an increase of 39 mV in the voltage of our PSC. This analysis can provide design principles for future PSCs to approach the Shockley-Queisser efficiency limit.
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spelling pubmed-86945892022-01-03 Effects of photon recycling and scattering in high-performance perovskite solar cells Cho, Changsoon Jang, Yeoun-Woo Lee, Seungmin Vaynzof, Yana Choi, Mansoo Noh, Jun Hong Leo, Karl Sci Adv Physical and Materials Sciences Efficient external radiation is essential for solar cells to achieve high power conversion efficiency (PCE). The classical limit of 1/2n(2) (n, refractive index) for electroluminescence quantum efficiency (ELQE) has recently been approached by perovskite solar cells (PSCs). Photon recycling (PR) and light scattering can provide an opportunity to surpass this limit. We investigate the role of PR and scattering in practical device operation using a radiative PSC with an ELQE (13.7% at 1 sun) that significantly surpasses the classical limit (7.4%). We experimentally analyze the contributions of PR and scattering to this strong radiation. A novel optical model reveals an increase of 39 mV in the voltage of our PSC. This analysis can provide design principles for future PSCs to approach the Shockley-Queisser efficiency limit. American Association for the Advancement of Science 2021-12-22 /pmc/articles/PMC8694589/ /pubmed/34936442 http://dx.doi.org/10.1126/sciadv.abj1363 Text en Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Cho, Changsoon
Jang, Yeoun-Woo
Lee, Seungmin
Vaynzof, Yana
Choi, Mansoo
Noh, Jun Hong
Leo, Karl
Effects of photon recycling and scattering in high-performance perovskite solar cells
title Effects of photon recycling and scattering in high-performance perovskite solar cells
title_full Effects of photon recycling and scattering in high-performance perovskite solar cells
title_fullStr Effects of photon recycling and scattering in high-performance perovskite solar cells
title_full_unstemmed Effects of photon recycling and scattering in high-performance perovskite solar cells
title_short Effects of photon recycling and scattering in high-performance perovskite solar cells
title_sort effects of photon recycling and scattering in high-performance perovskite solar cells
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8694589/
https://www.ncbi.nlm.nih.gov/pubmed/34936442
http://dx.doi.org/10.1126/sciadv.abj1363
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