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Al Bacha, S., Saitzek, S., Kabbour, H. & McCabe, E. E. (2024) Iron Oxychalcogenides and Their Photocurrent Responses. Inorg. Chem. 63 3292–3302.
Added by: Richard Baschera (2024-04-16 07:24:22) Last edited by: Richard Baschera (2024-04-16 07:35:33) |
| Type de référence: Article DOI: 10.1021/acs.inorgchem.3c03672 Numéro d'identification (ISBN etc.): 0020-1669 Clé BibTeX: AlBacha2024 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, MIOPS Créateurs: Al Bacha, Kabbour, McCabe, Saitzek Collection: Inorg. Chem. |
Consultations : 3/3
Indice de consultation : 4% Indice de popularité : 1% |
| Liens URLs https://doi.org/10 ... .inorgchem.3c03672 |
| Résumé |
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We report here the results of an experimental investigation of the electronic properties and photocurrent responses of the CaFeOQ and La2O2Fe2OQ2 phases and a computational study of the electronic structure of polar CaFeOSe. We find that both CaFeOQ (Q = S and Se) have band gaps and conduction band edge positions compatible with light-driven photocatalytic water splitting, although the oxysulfide suffers from degradation due to the oxidation of Fe2+ sites. The higher O/Q ratio in the Fe2+ coordination environment in CaFeOSe increases its stability without increasing the band gap beyond the visible range. The photocurrent CaFeOSe shows fast electron–hole separation, consistent with calculated carrier effective masses. These results suggest that these iron oxychalcogenides warrant further study to optimize their stability and morphology for photocatalytic and other photoactive applications.
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Publisher: American Chemical Society
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