Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
Impacte
Scholar |
Altres documents de l'autoria: Arcas, Ramón; Cardenas-Morcoso, Drialys; Spadaro, Maria Chiara; García-Tecedor, Miguel; Mesa, Camilo A.; Arbiol, Jordi; Fabregat-Santiago, Francisco; Gimenez, Sixto; Mas, Elena
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging TreatmentsAutoria
Data de publicació
2022-03-11Editor
WileyISSN
2367-198XCita bibliogràfica
ARCAS, Ramón, et al. Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light‐Aging Treatments. Solar RRL, 2022, 2200132.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Exposing BiVO4 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 ... [+]
Exposing BiVO4 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. [-]
Publicat a
Sol. RRL 2022, 2200132Entitat finançadora
Universitat Jaume I de Castellón | Generalitat Valenciana | Generalitat de Catalunya | Spanish MINECO | European Union’s Horizon 2020
Codi del projecte o subvenció
UJI-B2019-20 | PROMETEO/2020/028 | 2017 SGR 327. ICN2 | SEV-2017-0706 | 754510 (PROBIST) | POSDOC/ 2019/20 | APOSTD/2021/251
Títol del projecte o subvenció
the Severo Ochoa program | the Marie Skłodowska-Curie program
Drets d'accés
info:eu-repo/semantics/openAccess
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