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A fluorescent sensor to detect lead leakage from perovskite solar cells

Hybrid perovskites have been considered a hot material in the semiconductor industry; included as an active layer in advanced devices, from light emitting applications to solar cells, where they lead as a new strategic solution, they promise to be the next generation high impact class of materials....

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Autores principales: Pancini, Lorenzo, Montecucco, Riccardo, Larini, Valentina, Benassi, Alessandra, Mirani, Diego, Pica, Giovanni, De Bastiani, Michele, Doria, Filippo, Grancini, Giulia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10242455/
https://www.ncbi.nlm.nih.gov/pubmed/37287527
http://dx.doi.org/10.1039/d3ma00068k
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author Pancini, Lorenzo
Montecucco, Riccardo
Larini, Valentina
Benassi, Alessandra
Mirani, Diego
Pica, Giovanni
De Bastiani, Michele
Doria, Filippo
Grancini, Giulia
author_facet Pancini, Lorenzo
Montecucco, Riccardo
Larini, Valentina
Benassi, Alessandra
Mirani, Diego
Pica, Giovanni
De Bastiani, Michele
Doria, Filippo
Grancini, Giulia
author_sort Pancini, Lorenzo
collection PubMed
description Hybrid perovskites have been considered a hot material in the semiconductor industry; included as an active layer in advanced devices, from light emitting applications to solar cells, where they lead as a new strategic solution, they promise to be the next generation high impact class of materials. However, the presence – in most cases – of lead in their matrix, or lead byproducts as a consequence of material degradation, such as PbI(2), is currently hindering their massive deployment. Here, we develop a fluorescent organic sensor (FS) based on the Pb-selective BODIPY fluorophore that emits when the analyte – lead in this case – is detected. We carried out a fluorimetric analysis to quantify the trace concentration of Pb(2+) released from lead-based perovskite solar cells, exploring different material compositions. In particular, we immersed the devices in rainwater, to simulate the behavior of the devices under atmospheric conditions when the sealing is damaged. The sensor is studied in a phosphate buffer solution (PBS) at pH 4.5 to simulate the pH of acidic rain, and the results obtained are compared with ICP-OES measurements. We found that with fluorometric analysis, lead concentration could be calculated with a detection limit as low as 5 μg l(−1), in agreement with ICP-OES analysis. In addition, we investigated the possibility of using the sensor on a solid substrate for direct visualization to determine the presence of Pb. This can constitute the base for the development of a Pb-based label that can switch on if lead is detected, alerting any possible leakage.
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spelling pubmed-102424552023-06-07 A fluorescent sensor to detect lead leakage from perovskite solar cells Pancini, Lorenzo Montecucco, Riccardo Larini, Valentina Benassi, Alessandra Mirani, Diego Pica, Giovanni De Bastiani, Michele Doria, Filippo Grancini, Giulia Mater Adv Chemistry Hybrid perovskites have been considered a hot material in the semiconductor industry; included as an active layer in advanced devices, from light emitting applications to solar cells, where they lead as a new strategic solution, they promise to be the next generation high impact class of materials. However, the presence – in most cases – of lead in their matrix, or lead byproducts as a consequence of material degradation, such as PbI(2), is currently hindering their massive deployment. Here, we develop a fluorescent organic sensor (FS) based on the Pb-selective BODIPY fluorophore that emits when the analyte – lead in this case – is detected. We carried out a fluorimetric analysis to quantify the trace concentration of Pb(2+) released from lead-based perovskite solar cells, exploring different material compositions. In particular, we immersed the devices in rainwater, to simulate the behavior of the devices under atmospheric conditions when the sealing is damaged. The sensor is studied in a phosphate buffer solution (PBS) at pH 4.5 to simulate the pH of acidic rain, and the results obtained are compared with ICP-OES measurements. We found that with fluorometric analysis, lead concentration could be calculated with a detection limit as low as 5 μg l(−1), in agreement with ICP-OES analysis. In addition, we investigated the possibility of using the sensor on a solid substrate for direct visualization to determine the presence of Pb. This can constitute the base for the development of a Pb-based label that can switch on if lead is detected, alerting any possible leakage. RSC 2023-05-18 /pmc/articles/PMC10242455/ /pubmed/37287527 http://dx.doi.org/10.1039/d3ma00068k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Pancini, Lorenzo
Montecucco, Riccardo
Larini, Valentina
Benassi, Alessandra
Mirani, Diego
Pica, Giovanni
De Bastiani, Michele
Doria, Filippo
Grancini, Giulia
A fluorescent sensor to detect lead leakage from perovskite solar cells
title A fluorescent sensor to detect lead leakage from perovskite solar cells
title_full A fluorescent sensor to detect lead leakage from perovskite solar cells
title_fullStr A fluorescent sensor to detect lead leakage from perovskite solar cells
title_full_unstemmed A fluorescent sensor to detect lead leakage from perovskite solar cells
title_short A fluorescent sensor to detect lead leakage from perovskite solar cells
title_sort fluorescent sensor to detect lead leakage from perovskite solar cells
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10242455/
https://www.ncbi.nlm.nih.gov/pubmed/37287527
http://dx.doi.org/10.1039/d3ma00068k
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