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A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition
Carbon-based hole transport material (HTM)-free perovskite solar cells have exhibited a promising commercialization prospect, attributed to their outstanding stability and low manufacturing cost. However, the serious charge recombination at the interface of the carbon counter electrode and titanium...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781127/ https://www.ncbi.nlm.nih.gov/pubmed/35056796 http://dx.doi.org/10.3390/molecules27020481 |
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author | Wu, Jinyu Zhang, Lei Kang, Qiao Shi, Hongxi Li, Long Chi, Dan Huang, Shihua He, Gang |
author_facet | Wu, Jinyu Zhang, Lei Kang, Qiao Shi, Hongxi Li, Long Chi, Dan Huang, Shihua He, Gang |
author_sort | Wu, Jinyu |
collection | PubMed |
description | Carbon-based hole transport material (HTM)-free perovskite solar cells have exhibited a promising commercialization prospect, attributed to their outstanding stability and low manufacturing cost. However, the serious charge recombination at the interface of the carbon counter electrode and titanium dioxide (TiO(2)) suppresses the improvement in the carbon-based perovskite solar cells’ performance. Here, we propose a modified sequential deposition process in air, which introduces a mixed solvent to improve the morphology of lead iodide (PbI(2)) film. Combined with ethanol treatment, the preferred crystallization orientation of the PbI(2) film is generated. This new deposition strategy can prepare a thick and compact methylammonium lead halide (MAPbI(3)) film under high-humidity conditions, which acts as a natural active layer that separates the carbon counter electrode and TiO(2). Meanwhile, the modified sequential deposition method provides a simple way to facilitate the conversion of the ultrathick PbI(2) capping layer to MAPbI(3), as the light absorption layer. By adjusting the thickness of the MAPbI(3) capping layer, we achieved a power conversation efficiency (PCE) of 12.5% for the carbon-based perovskite solar cells. |
format | Online Article Text |
id | pubmed-8781127 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87811272022-01-22 A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition Wu, Jinyu Zhang, Lei Kang, Qiao Shi, Hongxi Li, Long Chi, Dan Huang, Shihua He, Gang Molecules Article Carbon-based hole transport material (HTM)-free perovskite solar cells have exhibited a promising commercialization prospect, attributed to their outstanding stability and low manufacturing cost. However, the serious charge recombination at the interface of the carbon counter electrode and titanium dioxide (TiO(2)) suppresses the improvement in the carbon-based perovskite solar cells’ performance. Here, we propose a modified sequential deposition process in air, which introduces a mixed solvent to improve the morphology of lead iodide (PbI(2)) film. Combined with ethanol treatment, the preferred crystallization orientation of the PbI(2) film is generated. This new deposition strategy can prepare a thick and compact methylammonium lead halide (MAPbI(3)) film under high-humidity conditions, which acts as a natural active layer that separates the carbon counter electrode and TiO(2). Meanwhile, the modified sequential deposition method provides a simple way to facilitate the conversion of the ultrathick PbI(2) capping layer to MAPbI(3), as the light absorption layer. By adjusting the thickness of the MAPbI(3) capping layer, we achieved a power conversation efficiency (PCE) of 12.5% for the carbon-based perovskite solar cells. MDPI 2022-01-13 /pmc/articles/PMC8781127/ /pubmed/35056796 http://dx.doi.org/10.3390/molecules27020481 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wu, Jinyu Zhang, Lei Kang, Qiao Shi, Hongxi Li, Long Chi, Dan Huang, Shihua He, Gang A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title | A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title_full | A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title_fullStr | A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title_full_unstemmed | A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title_short | A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition |
title_sort | modified sequential deposition route for high-performance carbon-based perovskite solar cells under atmosphere condition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781127/ https://www.ncbi.nlm.nih.gov/pubmed/35056796 http://dx.doi.org/10.3390/molecules27020481 |
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