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Compositional Sensitivity of Microstructures and Thermoelectric Properties of Ag1−xPb18Sb1+yTe20 Compounds

Perlt, S. and Höche, T. and Dadda, J. and Müller, E. and Rauschenbach , B. (2013) Compositional Sensitivity of Microstructures and Thermoelectric Properties of Ag1−xPb18Sb1+yTe20 Compounds. Journal of Electronic Materials, 42 (7), pp. 1422-1428. Springer. DOI: 10.1007/s11664-012-2283-3 ISSN 0361-5235

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Abstract

This study reports microstructural investigations of Ag1−xPb18Sb1+yTe20, i.e., Ag-deficient and Sb-excess lead-antimony-silver-tellurium-18 (LAST-18: x ≠ 0, y ≠ 0). Two different length scales are explored. The micrometer scale was evaluated by scanning electron microscopy (SEM) to analyze the number of secondary phases as well as composition. Site-specific focused ion-beam liftout of transmission electron microscopy (TEM) lamellae from thermoelectrically characterized samples was accomplished to investigate the structure on the nanometer scale. TEM was performed to reveal the shape and orientation relationship of nanoprecipitates. The study is completed with results for the thermoelectric properties for different values of x and y.

Item URL in elib:https://elib.dlr.de/85805/
Document Type:Article
Title:Compositional Sensitivity of Microstructures and Thermoelectric Properties of Ag1−xPb18Sb1+yTe20 Compounds
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Perlt, S.Leibniz-Institut für Oberflächenmodifizierung e. V., Permoserstr. 15, Leipzig, GermanyUNSPECIFIED
Höche, T.Fraunhofer Institute for Mechanics of Materials IWM, Walter-Hülse-Str. 1, 06120 Halle, GermanyUNSPECIFIED
Dadda, J.German Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Müller, E.German Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Rauschenbach , B.Leibniz-Institut für Oberflächenmodifizierung e. V., Permoserstr. 15, Leipzig, GermanyUNSPECIFIED
Date:2013
Journal or Publication Title:Journal of Electronic Materials
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:42
DOI :10.1007/s11664-012-2283-3
Page Range:pp. 1422-1428
Publisher:Springer
ISSN:0361-5235
Status:Published
Keywords:LAST Microstructure analysis Electron microscopy Thermoelectricity Secondary phases
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Project Fahrzeugenergiesysteme III (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Zabrocki, Dr. Knud
Deposited On:27 Nov 2013 14:36
Last Modified:27 Nov 2013 14:36

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