Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells
Photovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However, photodegradation is often a cause of dramatic drops in device performance. The use of ultraviolet (UV)-absorbing luminescent downshifting (LDS) layers can b...
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doaj-0fc67b3dfdae4273b78ca9a9d007465b2021-04-13T12:00:57ZengFrontiers Media S.A.Frontiers in Nanotechnology2673-30132021-04-01310.3389/fnano.2021.635929635929Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar CellsJoana Farinhas0Sandra F. H. Correia1Lianshe Fu2Alexandre M. P. Botas3Paulo S. André4Paulo S. André5Rute A. S. Ferreira6Ana Charas7Instituto de Telecomunicações, Instituto Superior Técnico, Lisboa, PortugalDepartment of Physics and CICECO—Aveiro Institute of Materials, University of Aveiro, Aveiro, PortugalDepartment of Physics and CICECO—Aveiro Institute of Materials, University of Aveiro, Aveiro, PortugalDepartment of Physics and CICECO—Aveiro Institute of Materials, University of Aveiro, Aveiro, PortugalInstituto de Telecomunicações, Instituto Superior Técnico, Lisboa, PortugalDepartment of Electric and Computer Engineering Instituto Superior Técnico, Universidade de Lisboa, Lisbon, PortugalDepartment of Physics and CICECO—Aveiro Institute of Materials, University of Aveiro, Aveiro, PortugalInstituto de Telecomunicações, Instituto Superior Técnico, Lisboa, PortugalPhotovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However, photodegradation is often a cause of dramatic drops in device performance. The use of ultraviolet (UV)-absorbing luminescent downshifting (LDS) layers can be a mitigation strategy to simultaneously filter UV radiation reaching the device and reemit it with lower energy in the visible spectral range, matching the maximum spectral response of the PV cells and thus enabling the increase of the photocurrent generated by the cell. In this work, we report the use of a Eu3+-doped siliceous-based organic–inorganic hybrid as a coating on organic solar cells based on the PTB7-Th:ITIC bulk heterojunction with the purpose of increasing their performance. We found that the applied coatings yield a PCE enhancement of ∼22% (from 3.1 to 3.8%) in solar cells with spin-coated layers, compared with the bare solar cells, which is among the highest performance enhancements induced by plastic luminescent coatings.https://www.frontiersin.org/articles/10.3389/fnano.2021.635929/fullluminescent downshiftingUV filtersorganic solar cellsphotodegradationorganic-inorganic hybrids |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joana Farinhas Sandra F. H. Correia Lianshe Fu Alexandre M. P. Botas Paulo S. André Paulo S. André Rute A. S. Ferreira Ana Charas |
spellingShingle |
Joana Farinhas Sandra F. H. Correia Lianshe Fu Alexandre M. P. Botas Paulo S. André Paulo S. André Rute A. S. Ferreira Ana Charas Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells Frontiers in Nanotechnology luminescent downshifting UV filters organic solar cells photodegradation organic-inorganic hybrids |
author_facet |
Joana Farinhas Sandra F. H. Correia Lianshe Fu Alexandre M. P. Botas Paulo S. André Paulo S. André Rute A. S. Ferreira Ana Charas |
author_sort |
Joana Farinhas |
title |
Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells |
title_short |
Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells |
title_full |
Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells |
title_fullStr |
Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells |
title_full_unstemmed |
Ultraviolet-Filtering Luminescent Transparent Coatings for High-Performance PTB7-Th:ITIC–Based Organic Solar Cells |
title_sort |
ultraviolet-filtering luminescent transparent coatings for high-performance ptb7-th:itic–based organic solar cells |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Nanotechnology |
issn |
2673-3013 |
publishDate |
2021-04-01 |
description |
Photovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However, photodegradation is often a cause of dramatic drops in device performance. The use of ultraviolet (UV)-absorbing luminescent downshifting (LDS) layers can be a mitigation strategy to simultaneously filter UV radiation reaching the device and reemit it with lower energy in the visible spectral range, matching the maximum spectral response of the PV cells and thus enabling the increase of the photocurrent generated by the cell. In this work, we report the use of a Eu3+-doped siliceous-based organic–inorganic hybrid as a coating on organic solar cells based on the PTB7-Th:ITIC bulk heterojunction with the purpose of increasing their performance. We found that the applied coatings yield a PCE enhancement of ∼22% (from 3.1 to 3.8%) in solar cells with spin-coated layers, compared with the bare solar cells, which is among the highest performance enhancements induced by plastic luminescent coatings. |
topic |
luminescent downshifting UV filters organic solar cells photodegradation organic-inorganic hybrids |
url |
https://www.frontiersin.org/articles/10.3389/fnano.2021.635929/full |
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