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Authordc.contributor.authorFigueroa Millon, Sebastian 
Authordc.contributor.authorAlvarez Serrano, Inmaculada 
Authordc.contributor.authorBerardan, David 
Authordc.contributor.authorGaldámez, Antonio César 
Admission datedc.date.accessioned2018-09-03T19:00:54Z
Available datedc.date.available2018-09-03T19:00:54Z
Publication datedc.date.issued2018-06
Cita de ítemdc.identifier.citationMaterials Chemistry and Physics 211 (2018) 321-328es_ES
Identifierdc.identifier.other10.1016/j.matchemphys.2018.02.047
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/151450
Abstractdc.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
Lenguagedc.language.isoenes_ES
Publisherdc.publisherElsevieres_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Sourcedc.sourceMaterials Chemistry and Physicses_ES
Keywordsdc.subjectThermoelectric materialses_ES
Keywordsdc.subjectChemical synthesises_ES
Keywordsdc.subjectTransmission electron microscopy HRTEMes_ES
Keywordsdc.subjectX-ray diffractiones_ES
Títulodc.titleSynthesis and transport properties of p-type lead-free AgSnmSbSe2Tem thermoelectric systemses_ES
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadorrgfes_ES
Indexationuchile.indexArtículo de publicación ISIes_ES


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile