Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2023 |
| Outros Autores: | , , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/162720 |
Resumo: | Publisher Copyright: © 2023 by the authors. |
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oai:run.unl.pt:10362/162720 |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporationcolloidal quantum dotsDost-in-Host hetero-crystalsintermediate band solar cellsperovskite semiconductorsphotovoltaicsChemical Engineering(all)Materials Science(all)SDG 7 - Affordable and Clean EnergyPublisher Copyright: © 2023 by the authors.By taking advantage of the outstanding intrinsic optoelectronic properties of perovskite-based photovoltaic materials, together with the strong near-infrared (NIR) absorption and electronic confinement in PbS quantum dots (QDs), sub-bandgap photocurrent generation is possible, opening the way for solar cell efficiencies surpassing the classical limits. The present study shows an effective methodology for the inclusion of high densities of colloidal PbS QDs in a MAPbI3 (methylammonium lead iodide) perovskite matrix as a means to enhance the spectral window of photon absorption of the perovskite host film and allow photocurrent production below its bandgap. The QDs were introduced in the perovskite matrix in different sizes and concentrations to study the formation of quantum-confined levels within the host bandgap and the potential formation of a delocalized intermediate mini-band (IB). Pronounced sub-bandgap (in NIR) absorption was optically confirmed with the introduction of QDs in the perovskite. The consequent photocurrent generation was demonstrated via photoconductivity measurements, which indicated IB establishment in the films. Despite verifying the reduced crystallinity of the MAPbI3 matrix with a higher concentration and size of the embedded QDs, the nanostructured films showed pronounced enhancement (above 10-fold) in NIR absorption and consequent photocurrent generation at photon energies below the perovskite bandgap.CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisUNINOVA-Instituto de Desenvolvimento de Novas TecnologiasRUNRibeiro, G.Ferreira, G.Menda, U. D.Alexandre, M.Brites, M. J.Barreiros, M. A.Jana, S.Águas, H.Martins, R.Fernandes, P. A.Salomé, P.Mendes, M. J.2024-01-24T17:08:48Z2023-08-292023-08-29T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://hdl.handle.net/10362/162720eng2079-4991PURE: 82010891https://doi.org/10.3390/nano13172447info: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:RCAAP2024-03-11T05:45:41Zoai:run.unl.pt:10362/162720Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:59:02.747695Repositório 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 |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| title |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| spellingShingle |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation Ribeiro, G. colloidal quantum dots Dost-in-Host hetero-crystals intermediate band solar cells perovskite semiconductors photovoltaics Chemical Engineering(all) Materials Science(all) SDG 7 - Affordable and Clean Energy |
| title_short |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| title_full |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| title_fullStr |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| title_full_unstemmed |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| title_sort |
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation |
| author |
Ribeiro, G. |
| author_facet |
Ribeiro, G. Ferreira, G. Menda, U. D. Alexandre, M. Brites, M. J. Barreiros, M. A. Jana, S. Águas, H. Martins, R. Fernandes, P. A. Salomé, P. Mendes, M. J. |
| author_role |
author |
| author2 |
Ferreira, G. Menda, U. D. Alexandre, M. Brites, M. J. Barreiros, M. A. Jana, S. Águas, H. Martins, R. Fernandes, P. A. Salomé, P. Mendes, M. J. |
| author2_role |
author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) DCM - Departamento de Ciência dos Materiais UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias RUN |
| dc.contributor.author.fl_str_mv |
Ribeiro, G. Ferreira, G. Menda, U. D. Alexandre, M. Brites, M. J. Barreiros, M. A. Jana, S. Águas, H. Martins, R. Fernandes, P. A. Salomé, P. Mendes, M. J. |
| dc.subject.por.fl_str_mv |
colloidal quantum dots Dost-in-Host hetero-crystals intermediate band solar cells perovskite semiconductors photovoltaics Chemical Engineering(all) Materials Science(all) SDG 7 - Affordable and Clean Energy |
| topic |
colloidal quantum dots Dost-in-Host hetero-crystals intermediate band solar cells perovskite semiconductors photovoltaics Chemical Engineering(all) Materials Science(all) SDG 7 - Affordable and Clean Energy |
| description |
Publisher Copyright: © 2023 by the authors. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-08-29 2023-08-29T00:00:00Z 2024-01-24T17:08:48Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/162720 |
| url |
http://hdl.handle.net/10362/162720 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
2079-4991 PURE: 82010891 https://doi.org/10.3390/nano13172447 |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
14 application/pdf |
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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 |
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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) |
| repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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