Correlation between microstructure and thermoelectric properties of AgPb18SbTe20 (LAST-18)

S. Perlt, Th Hche, J. Dadda, E. Mller, P. Bauer Pereira, R. P. Hermann, M. Sarahan, E. Pippel, R. Brydson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This study reports microstructure investigations at AgPb mSbTe2+m (m = 18) (Lead-Antimony-Silver-Tellurium, LAST-18). Two different length scales were explored. The micrometer scale was evaluated by SEM to analyze volume fraction and number of secondary phases as well as the impact of processing parameters on the homogeneity of bulk samples. Site-specific liftout of TEM lamellae from thermoelectrically characterised samples was made to investigate the structure on the nanometer scale. High-resolution TEM and energy-filtered TEM were performed to reveal shape and size distribution of nanoprecipitates, respectively. An attempt is made to derive a structure-property relationship.

Original languageEnglish
Title of host publication9th European Conference on Thermoelectrics, ECT 2011
Pages171-174
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event9th European Conference on Thermoelectrics, ECT 2011 - Thessaloniki, Greece
Duration: Sep 28 2011Sep 30 2011

Publication series

NameAIP Conference Proceedings
Volume1449
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th European Conference on Thermoelectrics, ECT 2011
Country/TerritoryGreece
CityThessaloniki
Period09/28/1109/30/11

Keywords

  • HRTEM
  • LAST
  • microstructure analysis

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