RT Journal Article
T1 Unveiling the Correlation between the Crystalline Structure of M‐Filled CoSb3 (M = Y, K, Sr) Skutterudites and Their Thermoelectric Transport Properties
A1 Gainza, Javier
A1 Serrano‐Sánchez, Federico
A1 Rodrigues, João
A1 Prado Gonjal, Jesús De La Paz
A1 Nemes, Norbert Marcel
A1 Biskup Zaja, Nevenko
A1 Dura, Oscar
A1 Martínez, José
A1 Fauth, François
A1 Alonso, José
AB Skutterudite‐type pnictides based on CoSb3 are promising semiconductor materials for thermoelectric applications. An exhaustive structural characterization by synchrotron X‐ray powder diffraction of different M‐filled CoSb3 (M = Y, K, Sr, La, Ce, Yb) skutterudites, with a panoply of M atoms with very different chemical nature, allows to better understand the effects of filling from a crystallo‐chemical point of view. These analyses focus on the correlation of chemical and structural features with the enhanced thermoelectric properties displayed by certain families of filled‐CoSb3 skutterudites. These are mainly determined by Sb positional parameters, yielding Oftedal plots that depend on the filling fraction, ionic state, and atomic radius of the filler. Together with the distortion of [Sb4] rings and [CoSb6] octahedra present in the skutterudite structure, these results are linked to the band‐convergence concept and its influence on the thermoelectric transport properties. Here, the structural changes observed in the different chemical compositions are relevant to understand the improved thermoelectric performance of single partially filled n‐type skutterudites.
PB Wiley
SN 1616-301X
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/95884
UL https://hdl.handle.net/20.500.14352/95884
LA eng
NO Gainza, Javier, et al. «Unveiling the Correlation between the Crystalline Structure of M‐Filled CoSb 3 (M = Y, K, Sr) Skutterudites and Their Thermoelectric Transport Properties». Advanced Functional Materials, vol. 30, n.o 36, septiembre de 2020, p. 2001651. https://doi.org/10.1002/adfm.202001651.
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO European Commission
NO Universidad Complutense de Madrid
NO Comunidad de Madrid
DS Docta Complutense
RD 7 oct 2024