Structural, optoelectronic and photo-thermoelectric properties of crystalline alloy CuAl<sub>x</sub>Fe<sub>1-x</sub>O<sub>2</sub> delafossite oxide materials

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dc.contributor.authorWheatley, R. A.
dc.contributor.authorRoble, M.
dc.contributor.authorGence, L.
dc.contributor.authorAcuna, C.
dc.contributor.authorRojas-Aedo, R.
dc.contributor.authorHidalgo-Rojas, D.
dc.contributor.authorGuzman-De La Cerda, D. E.
dc.contributor.authorVojkovic, S.
dc.contributor.authorSeifert, B.
dc.contributor.authorWallentowitz, S.
dc.contributor.authorVolkmann, U. G.
dc.contributor.authorDiaz-Droguett, D. E.
dc.date.accessioned2025-01-20T23:53:52Z
dc.date.available2025-01-20T23:53:52Z
dc.date.issued2021
dc.description.abstractCuFeO2 and CuAlO2 are attractive candidate materials for solar energy harvesting applications such as photocatalysis and photovoltaics. This work describes the structural, optoelectronic, thermal and electric properties of alloyed CuAlxFe1-xO2 Delafossite material synthesized using solid-state sintering techniques. The alloyed samples of CuAlxFe1-xO2 Delafossite oxide consisted of substitution of Fe for Al ranging from x = 0.01 to x = 0.99. The inclusion of Al in low concentrations affects the crystallization rate during solid-state synthesis, dramatically changing the resultant sample morphologies. The addition of dilute amounts of Al also greatly improves the conductivity of the material to a maximum of 3.18 Scm(-1). The material absorption edge shows strong changes over the alloying range. The more highly conducting samples show a strong photoinduced thermoelectric response to Vis-NIR illumination. (C) 2020 Published by Elsevier B.V.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jallcom.2020.157613
dc.identifier.eissn1873-4669
dc.identifier.issn0925-8388
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2020.157613
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95002
dc.identifier.wosidWOS:000610867800089
dc.language.isoen
dc.revistaJournal of alloys and compounds
dc.rightsacceso restringido
dc.subjectDelafossites
dc.subjectAlloys
dc.subjectSolid-state reaction
dc.subjectSemiconductor
dc.subjectSolar energy
dc.subjectOptical properties
dc.subjectConductivity
dc.titleStructural, optoelectronic and photo-thermoelectric properties of crystalline alloy CuAl<sub>x</sub>Fe<sub>1-x</sub>O<sub>2</sub> delafossite oxide materials
dc.typeartículo
dc.volumen857
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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