NDLI: Nanostructural characterization of mesoporous hematite thin film photoanode used for water splitting

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Nanostructural characterization of mesoporous hematite thin film photoanode used for water splitting

Content Provider	Semantic Scholar
Author	Gonçalves, Ricardo Leite, Edson R.
Copyright Year	2014
Abstract	Resumo By combining high-resolution transmission electron microscopy and scanning transmission electron microscopy with analytical capability, we investigated the nanostructure of a textured hematite photoanode with columnar grains obtained by the colloidal deposition of magnetite nanocrystals. This initial report describes in detail the structure and chemistry of the alpha-Fe2O3/SnO2:F interface by identifying semicoherent and incoherent interfaces as well as a localized interdiffusion layer of Sn and Fe at the interface (similar to 100 nm in length). Our study indicates that unintentional doping by tin at a high sintering temperature is not significant in enhancing hematite photoanode performance for water oxidation. The correlation of nanoscale morphology with photoelectrochemical characterization facilitated the identification of the beneficial effect of a preferential growth direction of a hematite film along the {[}110] axis for water-splitting efficiency. (AU)
Starting Page	47
Ending Page	54
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1557/jmr.2013.249
Volume Number	29
Alternate Webpage(s)	https://bv.fapesp.br/pt/publicacao/pdf/92473/nanostructural-characterization-of-mesoporous-hematite-thin-
Alternate Webpage(s)	https://doi.org/10.1557/jmr.2013.249
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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