Optical and structural investigation of Cu2ZnSnS4 based solar cells

Detalhes bibliográficos
Autor(a) principal: Teixeira, Jennifer P.
Data de Publicação: 2016
Outros Autores: Salomé, Pedro M. P., Sousa, Marta G., Fernandes, Paulo A., Sadewasser, Sascha, Cunha, António F. da, Leitão, Joaquim P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/9969
Resumo: The structural and optical properties of two solar cells in which the Cu2ZnSnS4 absorber layer was sulphurized by two different methods (S flux and graphite box), were studied. The grain sizes are dependent on the sulphurization method, the larger ones being obtained for the sulphurization in a S flux. The optical properties were investigated by photoluminescence (PL). A broad and asymmetric band was observed for the sample with the larger grains, whereas for the other one a very broad emission was obtained, mostly influenced by the CdS buffer layer. The dependence on the excitation power revealed the influence of fluctuating potentials created by strong doping and high compensation of the absorber layer. Radiative recombination channels are quite different from the ones typical of semiconductor materials with flat bands. A relationship between the PL intensity from the absorber layer measured at low temperatures, and the final PV performance is established. Thus, we propose that PL can be used as an evaluation experimental technique in order to decide if a certain absorber should be processed into a full solar cell or not.
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spelling Optical and structural investigation of Cu2ZnSnS4 based solar cellsCu2ZnSnS4DefectsGrain boundariesPhotoluminescenceThe structural and optical properties of two solar cells in which the Cu2ZnSnS4 absorber layer was sulphurized by two different methods (S flux and graphite box), were studied. The grain sizes are dependent on the sulphurization method, the larger ones being obtained for the sulphurization in a S flux. The optical properties were investigated by photoluminescence (PL). A broad and asymmetric band was observed for the sample with the larger grains, whereas for the other one a very broad emission was obtained, mostly influenced by the CdS buffer layer. The dependence on the excitation power revealed the influence of fluctuating potentials created by strong doping and high compensation of the absorber layer. Radiative recombination channels are quite different from the ones typical of semiconductor materials with flat bands. A relationship between the PL intensity from the absorber layer measured at low temperatures, and the final PV performance is established. Thus, we propose that PL can be used as an evaluation experimental technique in order to decide if a certain absorber should be processed into a full solar cell or not.WileyRepositório Científico do Instituto Politécnico do PortoTeixeira, Jennifer P.Salomé, Pedro M. P.Sousa, Marta G.Fernandes, Paulo A.Sadewasser, SaschaCunha, António F. daLeitão, Joaquim P.20162117-01-01T00:00:00Z2016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/9969eng10.1002/pssb.201670569metadata only accessinfo: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:RCAAP2023-03-13T12:51:30Zoai:recipp.ipp.pt:10400.22/9969Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:30:29.312951Repositório 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 Optical and structural investigation of Cu2ZnSnS4 based solar cells
title Optical and structural investigation of Cu2ZnSnS4 based solar cells
spellingShingle Optical and structural investigation of Cu2ZnSnS4 based solar cells
Teixeira, Jennifer P.
Cu2ZnSnS4
Defects
Grain boundaries
Photoluminescence
title_short Optical and structural investigation of Cu2ZnSnS4 based solar cells
title_full Optical and structural investigation of Cu2ZnSnS4 based solar cells
title_fullStr Optical and structural investigation of Cu2ZnSnS4 based solar cells
title_full_unstemmed Optical and structural investigation of Cu2ZnSnS4 based solar cells
title_sort Optical and structural investigation of Cu2ZnSnS4 based solar cells
author Teixeira, Jennifer P.
author_facet Teixeira, Jennifer P.
Salomé, Pedro M. P.
Sousa, Marta G.
Fernandes, Paulo A.
Sadewasser, Sascha
Cunha, António F. da
Leitão, Joaquim P.
author_role author
author2 Salomé, Pedro M. P.
Sousa, Marta G.
Fernandes, Paulo A.
Sadewasser, Sascha
Cunha, António F. da
Leitão, Joaquim P.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Teixeira, Jennifer P.
Salomé, Pedro M. P.
Sousa, Marta G.
Fernandes, Paulo A.
Sadewasser, Sascha
Cunha, António F. da
Leitão, Joaquim P.
dc.subject.por.fl_str_mv Cu2ZnSnS4
Defects
Grain boundaries
Photoluminescence
topic Cu2ZnSnS4
Defects
Grain boundaries
Photoluminescence
description The structural and optical properties of two solar cells in which the Cu2ZnSnS4 absorber layer was sulphurized by two different methods (S flux and graphite box), were studied. The grain sizes are dependent on the sulphurization method, the larger ones being obtained for the sulphurization in a S flux. The optical properties were investigated by photoluminescence (PL). A broad and asymmetric band was observed for the sample with the larger grains, whereas for the other one a very broad emission was obtained, mostly influenced by the CdS buffer layer. The dependence on the excitation power revealed the influence of fluctuating potentials created by strong doping and high compensation of the absorber layer. Radiative recombination channels are quite different from the ones typical of semiconductor materials with flat bands. A relationship between the PL intensity from the absorber layer measured at low temperatures, and the final PV performance is established. Thus, we propose that PL can be used as an evaluation experimental technique in order to decide if a certain absorber should be processed into a full solar cell or not.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
2117-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/9969
url http://hdl.handle.net/10400.22/9969
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1002/pssb.201670569
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eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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