Compact hematite buffer layer as a promoter of nanorod photoanode performances

R. Milan, S. Cattarin, N. Comisso, C. Baratto, K. Kaunisto, N. V. Tkachenko, I. Concina

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    Abstract

    The effect of a thin α-Fe 2 O 3 compact buffer layer (BL) on the photoelectrochemical performances of a bare α-Fe 2 O 3 nanorods photoanode is investigated. The BL is prepared through a simple spray deposition onto a fluorine-doped tin oxide (FTO) conducting glass substrate before the growth of a α-Fe 2 O 3 nanorods via a hydrothermal process. Insertion of the hematite BL between the FTO and the nanorods markedly enhances the generated photocurrent, by limiting undesired losses of photogenerated charges at the FTO||electrolyte interface. The proposed approach warrants a marked improvement of material performances, with no additional thermal treatment and no use/dispersion of rare or toxic species, in agreement with the principles of green chemistry.

    Original languageEnglish
    Article number35049
    JournalScientific Reports
    Volume6
    DOIs
    Publication statusPublished - 13 Oct 2016
    MoE publication typeA1 Journal article-refereed

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    Milan, R., Cattarin, S., Comisso, N., Baratto, C., Kaunisto, K., Tkachenko, N. V., & Concina, I. (2016). Compact hematite buffer layer as a promoter of nanorod photoanode performances. Scientific Reports, 6, [35049]. https://doi.org/10.1038/srep35049