Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments
Impact
Scholar |
Other documents of the author: Arcas, Ramón; Cardenas-Morcoso, Drialys; Spadaro, Maria Chiara; García-Tecedor, Miguel; Mesa, Camilo A.; Arbiol, Jordi; Fabregat-Santiago, Francisco; Gimenez, Sixto; Mas, Elena
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging TreatmentsAuthor (s)
Date
2022-03-11Publisher
WileyISSN
2367-198XBibliographic citation
ARCAS, Ramón, et al. Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light‐Aging Treatments. Solar RRL, 2022, 2200132.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
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. [-]
Is part of
Sol. RRL 2022, 2200132Funder Name
Universitat Jaume I de Castellón | Generalitat Valenciana | Generalitat de Catalunya | Spanish MINECO | European Union’s Horizon 2020
Project code
UJI-B2019-20 | PROMETEO/2020/028 | 2017 SGR 327. ICN2 | SEV-2017-0706 | 754510 (PROBIST) | POSDOC/ 2019/20 | APOSTD/2021/251
Project title or grant
the Severo Ochoa program | the Marie Skłodowska-Curie program
Rights
info:eu-repo/semantics/openAccess
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- INAM_Articles [507]