RT Journal Article
T1 High quality thin films of thermoelectric misfit cobalt oxides prepared by a chemical solution method
A1 Rivas Murias, Beatriz
A1 Vila Fungueiriño, José Manuel
A1 Rivadulla Fernández, José Francisco
K1 Solid-state chemistry
K1 Thermoelectrics
AB Misfit cobaltates ([Bi/Ba/Sr/Ca/CoO]nRS[CoO2]q) constitute the most promising family of thermoelectric oxides for high temperature energy harvesting. However, their complex structure and chemical composition makes extremely challenging their deposition by high-vacuum physical techniques. Therefore, many of them have not been prepared as thin films until now. Here we report the synthesis of high-quality epitaxial thin films of the most representative members of this family of compounds by a water-based chemical solution deposition method. The films show an exceptional crystalline quality, with an electrical conductivity and thermopower comparable to single crystals. These properties are linked to the epitaxial matching of the rock-salt layers of the structure to the substrate, producing clean interfaces free of amorphous phases. This is an important step forward for the integration of these materials with complementary n-type thermoelectric oxides in multilayer nanostructures
PB Nature Publishing Group
YR 2015
FD 2015
LK http://hdl.handle.net/10347/22651
UL http://hdl.handle.net/10347/22651
LA eng
NO Rivas-Murias, B., Manuel Vila-Fungueiriño, J. & Rivadulla, F. High quality thin films of thermoelectric misfit cobalt oxides prepared by a chemical solution method. Sci Rep 5, 11889 (2015). https://doi.org/10.1038/srep11889
NO This research was supported by the European Research Council (ERC StG-2DTHERMS), Ministerio de Economía y Competitividad of Spain (MAT2010-16157 & MAT2013-44673-R) and Xunta de Galicia (2012-CP071). J.M.V-F acknowledges the MINECO for support with a PhD grant of the FPI program
DS Minerva
RD 29 abr 2026