The authors would like to thank the Office of Naval Research (MURI program) for funding. Portions of the scanning and transmission electron microscopy work was performed in the (EPIC) (NIFTI) (Keck-II) facility of NUANCE Center at Northwestern University. NUANCE Center is supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of Illinois, and Northwestern University.
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Communication
Large Enhancements in the Thermoelectric Power Factor of Bulk PbTe at High Temperature by Synergistic Nanostructuring†
Article first published online: 8 OCT 2008
DOI: 10.1002/anie.200803934
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Sootsman, Joseph R., Kong, H., Uher, C., D'Angelo, J., Wu, C.-I., Hogan, Timothy P., Caillat, T. and Kanatzidis, Mercouri G. (2008), Large Enhancements in the Thermoelectric Power Factor of Bulk PbTe at High Temperature by Synergistic Nanostructuring. Angew. Chem. Int. Ed., 47: 8618–8622. doi: 10.1002/anie.200803934
- †
Publication History
- Issue published online: 21 OCT 2008
- Article first published online: 8 OCT 2008
- Manuscript Received: 8 AUG 2008
Funded by
- Office of Naval Research
- NSF-NSEC
- NSF-MRSEC. Grant Number: Keck Foundation
- State of Illinois
- Northwestern University
Keywords:
- composite materials;
- nanostructures;
- semiconductors;
- thermoelectric materials
Co-nanostructuring of PbTe with two kinds of metallic nanoparticles (Pb and Sb) can significantly increase its power factor at high temperatures (up to 87 % at 700 K; see picture, ZT=figure of merit). The electrical conductivity is dramatically increased at high temperatures without degrading the thermopower. This emergent synergy results only when both Pb and Sb nanocrystals are present.