Correlation Between Microstructure and Thermoelectric Properties of AgPb18SbTe20 (LAST-18)

被引：2
|
作者：
Perlt, S. [1 ]
Hoeche, Th. [1 ]
Dadda, J. [1 ]
Mueller, E. [1 ]
Pereira, P. Bauer [1 ]
Hermann, R. P. [1 ]
Sarahan, M. [1 ]
Pippel, E. [1 ]
Brydson, R. [1 ]
机构：
[1] Leibniz Inst Surface Modificat, D-04318 Leipzig, Germany
来源：
9TH EUROPEAN CONFERENCE ON THERMOELECTRICS (ECT2011) | 2012年 / 1449卷
关键词：
LAST; microstructure analysis; HRTEM; ELECTRON-MICROSCOPY; NANOSTRUCTURES; AGPBMSBTE2+M; SYSTEM;
D O I：
10.1063/1.4731524
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This study reports microstructure investigations at AgPbmSbTe2+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.
引用
收藏
页码：171 / 174
页数：4
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