elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Effect of preparation procedure and nanostructuring on the thermoelectric properties of the lead telluride-based material system AgPbmBiTe2+m (BLST-m)

Falkenbach, Oliver and Schmitz, Andreas and Hartung, David and Dankwort, Torben and Koch, Guenter and Kienle, Lorenz and Klar, Peter J. and Müller, Eckhard and Schlecht, Sabine (2016) Effect of preparation procedure and nanostructuring on the thermoelectric properties of the lead telluride-based material system AgPbmBiTe2+m (BLST-m). Journal of Applied Physics, 119 (21), p. 214310. American Institute of Physics (AIP). DOI: 10.1063/1.4952982 ISSN 0021-8979

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1063/1.4952982

Abstract

We report on the preparation and thermoelectric properties of the quaternary system AgPbmBiTe2þm (Bismuth-Lead-Silver-Tellurium, BLST-m) that were nanostructured by mechanical alloying. Nanopowders of various compositions were compacted by three different methods: cold pressing/ annealing, hot pressing, and short term sintering. The products are compared with respect to microstructure and sample density. The thermoelectric properties were measured: thermal conductivity in the temperature range from 300K to 800K and electrical conductivity and Seebeck coefficient between 100K and 800 K. The compacting method and the composition had a substantial impact on carrier concentration and mobility as well as on the thermoelectric parameters. Room temperature Hall measurements yielded carrier concentrations in the order of 1019cm�3, slightly increasing with increasing content of the additive silver bismuth telluride to the lead telluride base. ZT values close to the ones of bulk samples were achieved. X-ray diffraction and transmission electron microscopy (TEM) showed macroscopically homogeneous distributions of the constituting elements inside the nanopowders ensembles, indicating a solid solution. However, high resolution transmission electron microscopy (HRTEM) revealed disorder on the nanoscale inside individual nanopowders grains. Published by AIP Publishing.

Item URL in elib:https://elib.dlr.de/108682/
Document Type:Article
Title:Effect of preparation procedure and nanostructuring on the thermoelectric properties of the lead telluride-based material system AgPbmBiTe2+m (BLST-m)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Falkenbach, OliverInstitute for Inorganic and Analytical Chemistry, Justus-Liebig-University, Heinrich-Buff-Ring 17, D-35392 Giessen, GermanyUNSPECIFIED
Schmitz, AndreasGerman aerospace center, Institute of materials research, Köln, GermanyUNSPECIFIED
Hartung, DavidInstitute of Experimental Physics I, Justus-Liebig-University, Heinrich-Buff-Ring 16, D-35392 Giessen, GermanyUNSPECIFIED
Dankwort, TorbenInstitute for Material Science, Christian-Albrechts-University, Kaiserstrasse 2, D-24143 Kiel, GermanyUNSPECIFIED
Koch, GuenterInstitute for Inorganic and Analytical Chemistry, Justus-Liebig-University, Heinrich-Buff-Ring 17, D-35392 Giessen, GermanyUNSPECIFIED
Kienle, LorenzInstitute for Material Science, Christian-Albrechts-University, Kaiserstrasse 2, D-24143 Kiel, GermanyUNSPECIFIED
Klar, Peter J.Institute of Experimental Physics I, Justus-Liebig-University, Heinrich-Buff-Ring 16, D-35392 Giessen, GermanyUNSPECIFIED
Müller, EckhardGerman aerospace center, Institute of materials research, Köln, Germany and Justus Liebig university Giessen, Institute of inorganic and analytical chemistry, 35392 Giessen, GermanyUNSPECIFIED
Schlecht, SabineInstitute for Inorganic and Analytical Chemistry, Justus-Liebig-University, Heinrich-Buff-Ring 17, D-35392 Giessen, GermanyUNSPECIFIED
Date:6 June 2016
Journal or Publication Title:Journal of Applied Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:119
DOI :10.1063/1.4952982
Page Range:p. 214310
Publisher:American Institute of Physics (AIP)
ISSN:0021-8979
Status:Published
Keywords:Thermoelectric materials, Nanostructuring, Lead telluride
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 - NGC-Antriebsstrang (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Yasseri, Mohammad
Deposited On:01 Dec 2016 09:59
Last Modified:08 Mar 2018 18:41

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.