A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jallcom.2017.12.262 http://hdl.handle.net/11449/170529 |
Resumo: | This paper describes the electrodeposition of Europium-doped Zinc Oxide (ZnO) nanorods as well its application as photoanodes in dye sensitized solar cells (DSSCs). The incorporation of the Europium in the ZnO structure was evidenced by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The DSSCs based on Eu-doped nanorods photoanodes exhibits a higher conversion efficiency value (η) (0.50%) compared to the undoped photoanodes (0.34%). Mott-Schottky analysis was performed and this increase is assigned to the better electronic injection efficiency from the dye to the conduction band of Eu-doped ZnO nanorods, since the Europium incorporation in the ZnO matrix was able to down-shift its conduction band. The improvement on the DSSC performance was around 45%, showing the great potential from the practical point of view. To complement the experimental data, computational simulations were employed based on DFT framework, in order to carry out a detailed analysis of the electronic structures of these materials, as well as to provide an elucidation of its underlying physical mechanism at an atomic level. |
id |
UNSP_acb3eeda6f12c6f00a39b5107e7a3d77 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/170529 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cellsDFT calculationsDSSCElectrodepositionEu-doped ZnONanorodsThis paper describes the electrodeposition of Europium-doped Zinc Oxide (ZnO) nanorods as well its application as photoanodes in dye sensitized solar cells (DSSCs). The incorporation of the Europium in the ZnO structure was evidenced by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The DSSCs based on Eu-doped nanorods photoanodes exhibits a higher conversion efficiency value (η) (0.50%) compared to the undoped photoanodes (0.34%). Mott-Schottky analysis was performed and this increase is assigned to the better electronic injection efficiency from the dye to the conduction band of Eu-doped ZnO nanorods, since the Europium incorporation in the ZnO matrix was able to down-shift its conduction band. The improvement on the DSSC performance was around 45%, showing the great potential from the practical point of view. To complement the experimental data, computational simulations were employed based on DFT framework, in order to carry out a detailed analysis of the electronic structures of these materials, as well as to provide an elucidation of its underlying physical mechanism at an atomic level.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Grupo de Pesquisa em Química de Materiais (GPQM) Departamento de Ciências Naturais (DCNat) Universidade Federal de São João del Rei (UFSJ) - Campus Dom Bosco, Praça Dom Helvécio, 74Laboratório de Materiais Vítreos (LaMaV) Departamento de Engenharia de Materiais Universidade Federal de São Carlos (UFSCar) - São CarlosInstituto de Fisica ‘Gleb Wataghin’ (IFGW) Departamento de Fisica Aplicada Universidade Estadual de Campinas (UNICAMP) – CampinasGrupo de Modelagem e Simulação Molecular Universidade Estadual Paulista (UNESP), BauruNanotecnologia e Química Computacional (NanoQC) Departamento de Química Universidade Tecnológica Federal do Paraná (UTFPR)Grupo de Modelagem e Simulação Molecular Universidade Estadual Paulista (UNESP), BauruUniversidade Federal de Sergipe (UFS)Universidade Federal de São Carlos (UFSCar)Universidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)Universidade Tecnológica Federal do Paraná (UTFPR)Fonseca, André Felipe Vale daSiqueira, Renato LuizLanders, RichardFerrari, Jefferson LuisMarana, Naiara L. [UNESP]Sambrano, Júlio R. [UNESP]La Porta, Felipe de AlmeidaSchiavon, Marco Antônio2018-12-11T16:51:12Z2018-12-11T16:51:12Z2018-03-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article939-947application/pdfhttp://dx.doi.org/10.1016/j.jallcom.2017.12.262Journal of Alloys and Compounds, v. 739, p. 939-947.0925-8388http://hdl.handle.net/11449/17052910.1016/j.jallcom.2017.12.2622-s2.0-850400197112-s2.0-85040019711.pdf6284168579617066Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Alloys and Compounds1,020info:eu-repo/semantics/openAccess2023-10-27T06:04:46Zoai:repositorio.unesp.br:11449/170529Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:04:04.632480Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
title |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
spellingShingle |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells Fonseca, André Felipe Vale da DFT calculations DSSC Electrodeposition Eu-doped ZnO Nanorods |
title_short |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
title_full |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
title_fullStr |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
title_full_unstemmed |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
title_sort |
A theoretical and experimental investigation of Eu-doped ZnO nanorods and its application on dye sensitized solar cells |
author |
Fonseca, André Felipe Vale da |
author_facet |
Fonseca, André Felipe Vale da Siqueira, Renato Luiz Landers, Richard Ferrari, Jefferson Luis Marana, Naiara L. [UNESP] Sambrano, Júlio R. [UNESP] La Porta, Felipe de Almeida Schiavon, Marco Antônio |
author_role |
author |
author2 |
Siqueira, Renato Luiz Landers, Richard Ferrari, Jefferson Luis Marana, Naiara L. [UNESP] Sambrano, Júlio R. [UNESP] La Porta, Felipe de Almeida Schiavon, Marco Antônio |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Sergipe (UFS) Universidade Federal de São Carlos (UFSCar) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (Unesp) Universidade Tecnológica Federal do Paraná (UTFPR) |
dc.contributor.author.fl_str_mv |
Fonseca, André Felipe Vale da Siqueira, Renato Luiz Landers, Richard Ferrari, Jefferson Luis Marana, Naiara L. [UNESP] Sambrano, Júlio R. [UNESP] La Porta, Felipe de Almeida Schiavon, Marco Antônio |
dc.subject.por.fl_str_mv |
DFT calculations DSSC Electrodeposition Eu-doped ZnO Nanorods |
topic |
DFT calculations DSSC Electrodeposition Eu-doped ZnO Nanorods |
description |
This paper describes the electrodeposition of Europium-doped Zinc Oxide (ZnO) nanorods as well its application as photoanodes in dye sensitized solar cells (DSSCs). The incorporation of the Europium in the ZnO structure was evidenced by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The DSSCs based on Eu-doped nanorods photoanodes exhibits a higher conversion efficiency value (η) (0.50%) compared to the undoped photoanodes (0.34%). Mott-Schottky analysis was performed and this increase is assigned to the better electronic injection efficiency from the dye to the conduction band of Eu-doped ZnO nanorods, since the Europium incorporation in the ZnO matrix was able to down-shift its conduction band. The improvement on the DSSC performance was around 45%, showing the great potential from the practical point of view. To complement the experimental data, computational simulations were employed based on DFT framework, in order to carry out a detailed analysis of the electronic structures of these materials, as well as to provide an elucidation of its underlying physical mechanism at an atomic level. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T16:51:12Z 2018-12-11T16:51:12Z 2018-03-30 |
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://dx.doi.org/10.1016/j.jallcom.2017.12.262 Journal of Alloys and Compounds, v. 739, p. 939-947. 0925-8388 http://hdl.handle.net/11449/170529 10.1016/j.jallcom.2017.12.262 2-s2.0-85040019711 2-s2.0-85040019711.pdf 6284168579617066 |
url |
http://dx.doi.org/10.1016/j.jallcom.2017.12.262 http://hdl.handle.net/11449/170529 |
identifier_str_mv |
Journal of Alloys and Compounds, v. 739, p. 939-947. 0925-8388 10.1016/j.jallcom.2017.12.262 2-s2.0-85040019711 2-s2.0-85040019711.pdf 6284168579617066 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Alloys and Compounds 1,020 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
939-947 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128603897987072 |