A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFVJM |
Texto Completo: | http://acervo.ufvjm.edu.br/jspui/handle/1/1579 |
Resumo: | The conversion of solar energy into hydrogen fuel by splitting water into photoelectrochemical cells (PEC) is an appealing strategy to store energy and minimize the extensive use of fossil fuels. The key requirement for efficient water splitting is producing a large band bending (photovoltage) at the semiconductor to improve the separation of the photogenerated charge carriers. Therefore, an attractive method consists in creating internal electrical fields inside the PEC to render more favorable band bending for water splitting. Coupling ferroelectric materials exhibiting spontaneous polarization with visible light photoactive semiconductors can be a likely approach to getting higher photovoltage outputs. The spontaneous electric polarization tends to promote the desirable separation of photogenerated electron- hole pairs and can produce photovoltages higher than that obtained from a conventional p-n heterojunction. Herein, we demonstrate that a hole inversion layer induced by a ferroelectric Bi4V2O11 perovskite at the n-type BiVO4 interface creates a virtual p-n junction with high photovoltage, which is suitable for water splitting. The photovoltage output can be boosted by changing the polarization by doping the ferroelectric material with tungsten in order to produce the relatively large photovoltage of 1.39?V, decreasing the surface recombination and enhancing the photocurrent as much as 180%. |
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Santos, Wayler S. dos [UFVJM]Rodriguez, Mariandry [UFVJM]Afonso, Andr? S. [UFVJM]Mesquita, Jo?o P. [UFVJM]Nascimento, Lucas L.Patroc?nio, Ant?nio O. T.Silva, Adilson C.Oliveira, Luiz C. A.Fabris, Jos? D. [UFVJM]Pereira, M?rcio C. [UFVJM]Universidade Federal dos Vales do Jequitinhonha e MucuriUniversidade Federal de Uberl?ndiaUniversidade Federal de Ouro PretoUniversidade Federal de Minas Gerais2018-02-05T11:37:40Z2018-02-05T11:37:40Z2016-08-09SANTOS, Wayler S. dos et al. A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting. Nature, v. 6, n. 31406 , 9 p., ago. 2016.2045-2322http://acervo.ufvjm.edu.br/jspui/handle/1/157910.1038/srep3140610.1038/srep31406The conversion of solar energy into hydrogen fuel by splitting water into photoelectrochemical cells (PEC) is an appealing strategy to store energy and minimize the extensive use of fossil fuels. The key requirement for efficient water splitting is producing a large band bending (photovoltage) at the semiconductor to improve the separation of the photogenerated charge carriers. Therefore, an attractive method consists in creating internal electrical fields inside the PEC to render more favorable band bending for water splitting. Coupling ferroelectric materials exhibiting spontaneous polarization with visible light photoactive semiconductors can be a likely approach to getting higher photovoltage outputs. The spontaneous electric polarization tends to promote the desirable separation of photogenerated electron- hole pairs and can produce photovoltages higher than that obtained from a conventional p-n heterojunction. Herein, we demonstrate that a hole inversion layer induced by a ferroelectric Bi4V2O11 perovskite at the n-type BiVO4 interface creates a virtual p-n junction with high photovoltage, which is suitable for water splitting. The photovoltage output can be boosted by changing the polarization by doping the ferroelectric material with tungsten in order to produce the relatively large photovoltage of 1.39?V, decreasing the surface recombination and enhancing the photocurrent as much as 180%.Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-02-05T11:37:24Z No. of bitstreams: 1 hole_inversion_layer.PDF: 989829 bytes, checksum: 2f685c3bad70fc83c8a80f912ed8a394 (MD5)Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-02-05T11:37:40Z (GMT) No. of bitstreams: 1 hole_inversion_layer.PDF: 989829 bytes, checksum: 2f685c3bad70fc83c8a80f912ed8a394 (MD5)Made available in DSpace on 2018-02-05T11:37:40Z (GMT). No. of bitstreams: 1 hole_inversion_layer.PDF: 989829 bytes, checksum: 2f685c3bad70fc83c8a80f912ed8a394 (MD5) Previous issue date: 2016-08-09Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes)Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq)Macmillan Publishers Limited, part of Springer Nature.Obra licenciada sob a Licen?a Creative Commons (Attribution-NonCommercial 4.0 Internaconal (CC BY 4.0)). Fonte: https://s100.copyright.com/AppDispatchServlet?author=Wayler%20S.%20dos%20Santos%2C%20Mariandry%20Rodriguez%2C%20Andr%C3%A9%20S.%20Afonso%2C%20Jo%C3%A3o%20P.%20Mesquita%2C%20Lucas%20L.%20Nascimento%20et%20al.&contentID=10.1038%2Fsrep31406&imprint=Nature&issueNum&oa=CC%20BY&orderBeanReset=true&publication=Scientific%20Reports&publicationDate=2016-08-09&publisherName=SpringerNature&title=A%20hole%20inversion%20layer%20at%20the%20BiVO4%2FBi4V2O11%20interface%20produces%20a%20high%20tunable%20photovoltage%20for%20water%20splitting&volumeNum=6. Acesso em: 5 fev. 2018.info:eu-repo/semantics/openAccessA hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splittinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFVJMinstname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)instacron:UFVJMTEXThole_inversion_layer.PDF.txthole_inversion_layer.PDF.txtExtracted texttext/plain41426http://acervo.ufvjm.edu.br/jspui/bitstream/1/1579/3/hole_inversion_layer.PDF.txtacd5e23c7ac3d05c4ea3e14c4b517c12MD53LICENSElicense.txtlicense.txttext/plain; charset=utf-82157http://acervo.ufvjm.edu.br/jspui/bitstream/1/1579/2/license.txtc0fe10782d3e2994b7c028f47c86ff9eMD52ORIGINALhole_inversion_layer.PDFhole_inversion_layer.PDFapplication/pdf989829http://acervo.ufvjm.edu.br/jspui/bitstream/1/1579/1/hole_inversion_layer.PDF2f685c3bad70fc83c8a80f912ed8a394MD511/15792018-02-06 03:00:11.746oai:acervo.ufvjm.edu.br/jspui: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ório InstitucionalPUBhttp://acervo.ufvjm.edu.br/oai/requestrepositorio@ufvjm.edu.bropendoar:21452018-02-06T05:00:11Repositório Institucional da UFVJM - Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)false |
dc.title.en.fl_str_mv |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
title |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
spellingShingle |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting Santos, Wayler S. dos [UFVJM] |
title_short |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
title_full |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
title_fullStr |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
title_full_unstemmed |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
title_sort |
A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting |
author |
Santos, Wayler S. dos [UFVJM] |
author_facet |
Santos, Wayler S. dos [UFVJM] Rodriguez, Mariandry [UFVJM] Afonso, Andr? S. [UFVJM] Mesquita, Jo?o P. [UFVJM] Nascimento, Lucas L. Patroc?nio, Ant?nio O. T. Silva, Adilson C. Oliveira, Luiz C. A. Fabris, Jos? D. [UFVJM] Pereira, M?rcio C. [UFVJM] |
author_role |
author |
author2 |
Rodriguez, Mariandry [UFVJM] Afonso, Andr? S. [UFVJM] Mesquita, Jo?o P. [UFVJM] Nascimento, Lucas L. Patroc?nio, Ant?nio O. T. Silva, Adilson C. Oliveira, Luiz C. A. Fabris, Jos? D. [UFVJM] Pereira, M?rcio C. [UFVJM] |
author2_role |
author author author author author author author author author |
dc.contributor.institution.pt_BR.fl_str_mv |
Universidade Federal dos Vales do Jequitinhonha e Mucuri Universidade Federal de Uberl?ndia Universidade Federal de Ouro Preto Universidade Federal de Minas Gerais |
dc.contributor.author.fl_str_mv |
Santos, Wayler S. dos [UFVJM] Rodriguez, Mariandry [UFVJM] Afonso, Andr? S. [UFVJM] Mesquita, Jo?o P. [UFVJM] Nascimento, Lucas L. Patroc?nio, Ant?nio O. T. Silva, Adilson C. Oliveira, Luiz C. A. Fabris, Jos? D. [UFVJM] Pereira, M?rcio C. [UFVJM] |
description |
The conversion of solar energy into hydrogen fuel by splitting water into photoelectrochemical cells (PEC) is an appealing strategy to store energy and minimize the extensive use of fossil fuels. The key requirement for efficient water splitting is producing a large band bending (photovoltage) at the semiconductor to improve the separation of the photogenerated charge carriers. Therefore, an attractive method consists in creating internal electrical fields inside the PEC to render more favorable band bending for water splitting. Coupling ferroelectric materials exhibiting spontaneous polarization with visible light photoactive semiconductors can be a likely approach to getting higher photovoltage outputs. The spontaneous electric polarization tends to promote the desirable separation of photogenerated electron- hole pairs and can produce photovoltages higher than that obtained from a conventional p-n heterojunction. Herein, we demonstrate that a hole inversion layer induced by a ferroelectric Bi4V2O11 perovskite at the n-type BiVO4 interface creates a virtual p-n junction with high photovoltage, which is suitable for water splitting. The photovoltage output can be boosted by changing the polarization by doping the ferroelectric material with tungsten in order to produce the relatively large photovoltage of 1.39?V, decreasing the surface recombination and enhancing the photocurrent as much as 180%. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-08-09 |
dc.date.accessioned.fl_str_mv |
2018-02-05T11:37:40Z |
dc.date.available.fl_str_mv |
2018-02-05T11:37:40Z |
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.citation.fl_str_mv |
SANTOS, Wayler S. dos et al. A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting. Nature, v. 6, n. 31406 , 9 p., ago. 2016. |
dc.identifier.uri.fl_str_mv |
http://acervo.ufvjm.edu.br/jspui/handle/1/1579 10.1038/srep31406 |
dc.identifier.issn.none.fl_str_mv |
2045-2322 |
dc.identifier.doi.none.fl_str_mv |
10.1038/srep31406 |
identifier_str_mv |
SANTOS, Wayler S. dos et al. A hole inversion layer at the BiVO4/Bi4V2O11 interface produces a high tunable photovoltage for water splitting. Nature, v. 6, n. 31406 , 9 p., ago. 2016. 2045-2322 10.1038/srep31406 |
url |
http://acervo.ufvjm.edu.br/jspui/handle/1/1579 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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Macmillan Publishers Limited, part of Springer Nature. info:eu-repo/semantics/openAccess |
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Macmillan Publishers Limited, part of Springer Nature. |
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openAccess |
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