Abstract
Chemical reaction processes for thermoelectric nanomaterials have received a lot of attention because of subsequent small and uniform nanostructures, causing a remarkable reduction in thermal conductivity; however, they typically showed low electrical properties possibly due to contaminations by chemicals resulting in low ZT. We devised a new chemical process for synthesizing an n-type Bi2Te2.7Se0.3 nanocompound without the chemicals causing potential contaminations. The product exhibited a predominant electrical conductivity while retaining the advantage of chemical reaction routes; thus, synergistic effect of the thermoelectric transport properties was greatly induced, resulting in the highest ZT among n-type Bi2Te3 materials in bulk phase.
Original language | English |
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Pages (from-to) | 13-16 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 119 |
DOIs | |
State | Published - 1 Jul 2016 |
Bibliographical note
Publisher Copyright:© 2016 Elsevier B.V. All rights reserved.
Keywords
- Bismuth telluride
- Electrical conductivity
- Nanostructure
- Thermal conductivity
- Thermoelectric materials