Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments

Exposing BiVO photoanodes to light-aging treatments is known to produce a significant photocurrent enhancement. Until now, the interpretation given to this phenomenon is associated to the formation of oxygen vacancies and little is reported about chemical changes in the material. Herein, the chemica...

Descripción completa

Detalles Bibliográficos
Autores: Arcas, Ramón, Cardenas-Morcoso, Drialys, Spadaro, Maria Chiara, García-Tecedor, Miguel, Mesa, Camilo A., Arbiol, Jordi, Fabregat-Santiago, Francisco, Giménez, Sixto, Mas-Marzá, Elena
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/280553
Acceso en línea:http://hdl.handle.net/10261/280553
Access Level:acceso abierto
Palabra clave:Bi segregation
BiVO4
Light-aging treatments
Oxygen vacancies
id ES_44c5f860ed49fc3abd4cf67f6d9f70bc
oai_identifier_str oai:digital.csic.es:10261/280553
network_acronym_str ES
network_name_str España
repository_id_str
spelling Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging TreatmentsArcas, RamónCardenas-Morcoso, DrialysSpadaro, Maria ChiaraGarcía-Tecedor, MiguelMesa, Camilo A.Arbiol, JordiFabregat-Santiago, FranciscoGiménez, SixtoMas-Marzá, ElenaBi segregationBiVO4Light-aging treatmentsOxygen vacanciesExposing BiVO photoanodes to light-aging treatments is known to produce a significant photocurrent enhancement. Until now, the interpretation given to this phenomenon is associated to the formation of oxygen vacancies and little is reported about chemical changes in the material. Herein, the chemical segregation of Bi species toward the surface upon light-aging treatment is demonstrated, which takes place with the concomitant formation of intra-bandgap states associated to the oxygen vacancies. It is further demonstrated that these intra-bandgap states are photoactive and generate photocurrent under infrared excitation. These results highlight the importance of understanding light-induced effects while employing multinary metal oxide photoelectrodes.The authors thank support from the projects ENE2017-85087-C3-1-R, PID2020-116093RB-C41, PID2020-116093RB -C43 and Network of Excellence CAT&SCALE (RED2018-102459-T), funded by MCIN/ AEI/10.13039/501100011033. University Jaume I (UJI-B2019-20) and Generalitat Valenciana (PROMETEO/2020/028) are also acknowledged for financial support. Serveis Centrals d’Instrumentació Científica from UJI are also acknowledged for SEM, TEM, Raman, and XRD measurements. M.C.S. and J.A. acknowledge funding from Generalitat de Catalunya 2017 SGR 327. ICN2 is supported by the Severo Ochoa program from Spanish MINECO (Grant no. SEV-2017-0706) and is funded by the CERCA Programme/Generalitat de Catalunya. M.C.S. has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement no. 754510 (PROBIST) and the Severo Ochoa programme. C.A.M. acknowledges the University Jaume I for the postdoc fellowship POSDOC/2019/20 and Generalitat Valenciana for the APOSTD/2021/251 fellowship.John Wiley & SonsMinisterio de Ciencia e Innovación (España)Generalitat ValencianaGeneralitat de CatalunyaMinisterio de Economía y Competitividad (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/280553reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2017-85087-C3-1-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116093RB-C41info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116093RB-C43info:eu-repo/grantAgreement/EC/H2020/754510Arcas, Ramón; Cardenas-Morcoso, Drialys; Spadaro, Maria Chiara; García-Tecedor, Miguel; Mesa, Camilo A.; Arbiol, Jordi; Fabregat-Santiago, Francisco; Giménez, Sixto; Mas-Marzá, Elena; 2022; Supporting Information for Direct observation of the chemical transformations in BiVO4 photoanodes upon prolonged light-aging treatments [Dataset]; John Wiley & Sons; http://doi.org/10.1002/solr.202200132http://doi.org/10.1002/solr.202200132Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2805532026-05-22T06:33:51Z
dc.title.none.fl_str_mv Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
title Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
spellingShingle Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
Arcas, Ramón
Bi segregation
BiVO4
Light-aging treatments
Oxygen vacancies
title_short Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
title_full Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
title_fullStr Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
title_full_unstemmed Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
title_sort Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
dc.creator.none.fl_str_mv Arcas, Ramón
Cardenas-Morcoso, Drialys
Spadaro, Maria Chiara
García-Tecedor, Miguel
Mesa, Camilo A.
Arbiol, Jordi
Fabregat-Santiago, Francisco
Giménez, Sixto
Mas-Marzá, Elena
author Arcas, Ramón
author_facet Arcas, Ramón
Cardenas-Morcoso, Drialys
Spadaro, Maria Chiara
García-Tecedor, Miguel
Mesa, Camilo A.
Arbiol, Jordi
Fabregat-Santiago, Francisco
Giménez, Sixto
Mas-Marzá, Elena
author_role author
author2 Cardenas-Morcoso, Drialys
Spadaro, Maria Chiara
García-Tecedor, Miguel
Mesa, Camilo A.
Arbiol, Jordi
Fabregat-Santiago, Francisco
Giménez, Sixto
Mas-Marzá, Elena
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Generalitat Valenciana
Generalitat de Catalunya
Ministerio de Economía y Competitividad (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bi segregation
BiVO4
Light-aging treatments
Oxygen vacancies
topic Bi segregation
BiVO4
Light-aging treatments
Oxygen vacancies
description Exposing BiVO photoanodes to light-aging treatments is known to produce a significant photocurrent enhancement. Until now, the interpretation given to this phenomenon is associated to the formation of oxygen vacancies and little is reported about chemical changes in the material. Herein, the chemical segregation of Bi species toward the surface upon light-aging treatment is demonstrated, which takes place with the concomitant formation of intra-bandgap states associated to the oxygen vacancies. It is further demonstrated that these intra-bandgap states are photoactive and generate photocurrent under infrared excitation. These results highlight the importance of understanding light-induced effects while employing multinary metal oxide photoelectrodes.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/280553
url http://hdl.handle.net/10261/280553
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2017-85087-C3-1-R
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116093RB-C41
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116093RB-C43
info:eu-repo/grantAgreement/EC/H2020/754510
Arcas, Ramón; Cardenas-Morcoso, Drialys; Spadaro, Maria Chiara; García-Tecedor, Miguel; Mesa, Camilo A.; Arbiol, Jordi; Fabregat-Santiago, Francisco; Giménez, Sixto; Mas-Marzá, Elena; 2022; Supporting Information for Direct observation of the chemical transformations in BiVO4 photoanodes upon prolonged light-aging treatments [Dataset]; John Wiley & Sons; http://doi.org/10.1002/solr.202200132
http://doi.org/10.1002/solr.202200132
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407116491489280
score 15,812455

Similares en LA Referencia