Enhanced thermoelectric performance in spark plasma textured bulk n-type BiTe2.7Se0.3 and p-type Bi0.5Sb 1.5Te3

Bhame, S. D.; Dhanapal, Pravarthana; Prellier, W.; Noudem, J. G.

doi:10.1063/1.4807771

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Enhanced thermoelectric performance in spark plasma textured bulk n-type BiTe2.7Se0.3 and p-type Bi0.5Sb 1.5Te3

Bhame, S. D.; Dhanapal, Pravarthana; Prellier, W. et al.

2013 • In Applied Physics Letters, 102, p. 211901

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10.1063/1.4807771

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Copyright (2013) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. and may be found at http://dx.doi.org/10.1063/1.4807771.

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Abstract :

[en] Bulk p and n-type bismuth tellurides were prepared using spark plasma texturization method. The texture development along the uniaxial load in the 001 direction is confirmed from both x-ray diffraction analysis and electron backscattering diffraction measurements. Interestingly, those textured samples outperform the samples prepared by conventional spark plasma sintering (SPS) leading to a reduced thermal conductivity in the ab-plane. The textured samples of n-type BiTe2.7Se0.3 and p-type Bi0.5Sb 1.5Te3 showed a 42% and 33% enhancement in figure of merit at room temperature, respectively, as compared to their SPS counterparts, opening the route for applications. © 2013 AIP Publishing LLC.

Disciplines :

Chemistry
Physics

Author, co-author :

Bhame, S. D.; Laboratoire CRISMAT, CNRS UMR 65086, ENSICAEN, Marechal Juin, 14050 Caen, France, LUSAC (EA 2607), Université de Caen, Basse Normandie (UCBN), BP 78, 50130 Cherbourg Octeville, France

Dhanapal, Pravarthana ; Université de Liège - ULiège > Form. doct. sc. (chimie - Bologne)

Prellier, W.; Laboratoire CRISMAT, CNRS UMR 65086, ENSICAEN, Marechal Juin, 14050 Caen, France

Noudem, J. G.; Laboratoire CRISMAT, CNRS UMR 65086, ENSICAEN, Marechal Juin, 14050 Caen, France, LUSAC (EA 2607), Université de Caen, Basse Normandie (UCBN), BP 78, 50130 Cherbourg Octeville, France

Language :

English

Title :

Enhanced thermoelectric performance in spark plasma textured bulk n-type BiTe2.7Se0.3 and p-type Bi0.5Sb 1.5Te3

Publication date :

2013

Journal title :

Applied Physics Letters

ISSN :

0003-6951

eISSN :

1077-3118

Publisher :

American Institute of Physics, United States - New York

Volume :

102

Pages :

211901

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

Erasmus Mundus IDS Funmat
ANR - Agence Nationale de la Recherche [FR]

Available on ORBi :

since 04 November 2014

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