Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/56317 |
Resumo: | In recent years, the discovery of the excellent optical and electrical properties of perovskite materials made them one of focus of research in the area of photovoltaics, with its efficiency increasing significantly since its inception, in 2009. However, problems associated with the stability of these materials have hindered their widescale market application, with two examples being the UV degradation of the absorber material and the photoactivity, under 400 nm wavelengths, of TiO2 which is one of the main materials used as an electron transport layer in these cells. Consequently, different methods were studied to minimize this degradation. One example consists in using down-shifting materials that change the harmful UV radiation to higher wavelengths that have no effect on the cell stability. Thus, this work is focused in the theoretical study of the photocurrent gains that can be attained by emulating the changed spectrum resulting from applying these materials, as well as the reduction in the harmful effects of UV radiation on perovskite solar cells. This first case analyzed resulted in gains of around 1% for planar cells and around 2% for cells with photonic structures. For the second optimized case, one was able to obtain a general reduction in generation in TiO2 of one order of magnitude, coupled with a 80% reduction of perovskite’s UV absorption. |
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Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar CellsPhotovoltaicsPhotonic-enhanced Perovskite Solar CellsUltraviolet StabilityDown-shiftingLight TrappingDomínio/Área Científica::Engenharia e Tecnologia::Engenharia dos MateriaisIn recent years, the discovery of the excellent optical and electrical properties of perovskite materials made them one of focus of research in the area of photovoltaics, with its efficiency increasing significantly since its inception, in 2009. However, problems associated with the stability of these materials have hindered their widescale market application, with two examples being the UV degradation of the absorber material and the photoactivity, under 400 nm wavelengths, of TiO2 which is one of the main materials used as an electron transport layer in these cells. Consequently, different methods were studied to minimize this degradation. One example consists in using down-shifting materials that change the harmful UV radiation to higher wavelengths that have no effect on the cell stability. Thus, this work is focused in the theoretical study of the photocurrent gains that can be attained by emulating the changed spectrum resulting from applying these materials, as well as the reduction in the harmful effects of UV radiation on perovskite solar cells. This first case analyzed resulted in gains of around 1% for planar cells and around 2% for cells with photonic structures. For the second optimized case, one was able to obtain a general reduction in generation in TiO2 of one order of magnitude, coupled with a 80% reduction of perovskite’s UV absorption.Mendes, ManuelMartins, RodrigoRUNAlexandre, Miguel Diogo Furtado2019-01-03T11:58:01Z2018-1120182018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/56317enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:26:57Zoai:run.unl.pt:10362/56317Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:32:50.611249Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
title |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
spellingShingle |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells Alexandre, Miguel Diogo Furtado Photovoltaics Photonic-enhanced Perovskite Solar Cells Ultraviolet Stability Down-shifting Light Trapping Domínio/Área Científica::Engenharia e Tecnologia::Engenharia dos Materiais |
title_short |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
title_full |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
title_fullStr |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
title_full_unstemmed |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
title_sort |
Theoretical Study of Optimum Luminescent Down-Shifting Properties for High Efficiency and Stable Perovskite Solar Cells |
author |
Alexandre, Miguel Diogo Furtado |
author_facet |
Alexandre, Miguel Diogo Furtado |
author_role |
author |
dc.contributor.none.fl_str_mv |
Mendes, Manuel Martins, Rodrigo RUN |
dc.contributor.author.fl_str_mv |
Alexandre, Miguel Diogo Furtado |
dc.subject.por.fl_str_mv |
Photovoltaics Photonic-enhanced Perovskite Solar Cells Ultraviolet Stability Down-shifting Light Trapping Domínio/Área Científica::Engenharia e Tecnologia::Engenharia dos Materiais |
topic |
Photovoltaics Photonic-enhanced Perovskite Solar Cells Ultraviolet Stability Down-shifting Light Trapping Domínio/Área Científica::Engenharia e Tecnologia::Engenharia dos Materiais |
description |
In recent years, the discovery of the excellent optical and electrical properties of perovskite materials made them one of focus of research in the area of photovoltaics, with its efficiency increasing significantly since its inception, in 2009. However, problems associated with the stability of these materials have hindered their widescale market application, with two examples being the UV degradation of the absorber material and the photoactivity, under 400 nm wavelengths, of TiO2 which is one of the main materials used as an electron transport layer in these cells. Consequently, different methods were studied to minimize this degradation. One example consists in using down-shifting materials that change the harmful UV radiation to higher wavelengths that have no effect on the cell stability. Thus, this work is focused in the theoretical study of the photocurrent gains that can be attained by emulating the changed spectrum resulting from applying these materials, as well as the reduction in the harmful effects of UV radiation on perovskite solar cells. This first case analyzed resulted in gains of around 1% for planar cells and around 2% for cells with photonic structures. For the second optimized case, one was able to obtain a general reduction in generation in TiO2 of one order of magnitude, coupled with a 80% reduction of perovskite’s UV absorption. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11 2018 2018-11-01T00:00:00Z 2019-01-03T11:58:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/56317 |
url |
http://hdl.handle.net/10362/56317 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137950207836160 |