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Autordc.contributor.authorFigueroa Millon, Sebastian 
Autordc.contributor.authorAlvarez Serrano, Inmaculada 
Autordc.contributor.authorBerardan, David 
Autordc.contributor.authorGaldámez, Antonio César 
Fecha ingresodc.date.accessioned2018-09-03T19:00:54Z
Fecha disponibledc.date.available2018-09-03T19:00:54Z
Fecha de publicacióndc.date.issued2018-06
Cita de ítemdc.identifier.citationMaterials Chemistry and Physics 211 (2018) 321-328es_ES
Identificadordc.identifier.other10.1016/j.matchemphys.2018.02.047
Identificadordc.identifier.urihttps://repositorio.uchile.cl/handle/2250/151450
Resumendc.description.abstractWe report the synthesis, characterization and thermoelectric properties of lead-free AgSnmSbSe2Tem (m = 2 and 10) systems. Powder X-ray diffraction patterns and Rietveld refinement results were consistent with phases belonging to the Pm (3) over barm space group. The microstructures and morphologies of these systems were investigated using scanning electron microcopy (SEM) and high-resolution transmission electron microscopy (HRTEM). Parallelepiped bars for transport measurements were prepared using two methods: the classical method (CM) from melted samples and the spark plasma sintering (SPS). The AgSnmSbSe2Tem (m = 2 and 10) systems exhibited typical degenerate semiconductor behavior, with a carrier concentration of approximately +10(21) cm(-3). We determined that the Seebeck coefficient can be substantially increased from approximately +40 V K-1 (CM) to +70 mu V K-1 (SPS) in AgSn2SbSe2Te2 at room temperature. Consequently, the power factor (S(2)cr) was similar to 22 W cm(-1) K-2. On the basis of the electrical and thermal transport properties, ZT values of similar to 0.10 were obtained at room temperature. (C) 2018 Elsevier B.V. All rights reserved.es_ES
Patrocinadordc.description.sponsorshipEntidad financiadora FONDECYT Número de concesión 1160685es_ES
Idiomadc.language.isoenes_ES
Publicadordc.publisherElsevieres_ES
Tipo de licenciadc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link a Licenciadc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Fuentedc.sourceMaterials Chemistry and Physicses_ES
Palabras clavesdc.subjectThermoelectric materialses_ES
Palabras clavesdc.subjectChemical synthesises_ES
Palabras clavesdc.subjectTransmission electron microscopy HRTEMes_ES
Palabras clavesdc.subjectX-ray diffractiones_ES
Títulodc.titleSynthesis and transport properties of p-type lead-free AgSnmSbSe2Tem thermoelectric systemses_ES
Tipo de documentodc.typeArtículo de revista
Catalogadoruchile.catalogadorrgfes_ES
Indizaciónuchile.indexArtículo de publicación ISIes_ES


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivs 3.0 Chile