Issue 17, 2016

Solvothermal synthesis of wire-like SnxSb2Te3+x with an enhanced thermoelectric performance

Abstract

Nanostructured tellurides have attracted increasing attention in thermoelectric applications for waste heat recovery and cooling devices. Here, we report on the synthesis of wire-like SnxSb2Te3+x (x = 0, 0.02 and 0.05) nanoparticles using elemental precursors in EG. The enhanced thermoelectric performance was achieved in alloyed samples due to the increase of carrier population in heavy valence band valleys by incorporating Sn2+ at the Sb3+ sublattice, enabling the simultaneous realization of low electrical resistivity along with a high Seebeck coefficient as well as the decline of thermal conductivity. Thus a boosted power factor and low thermal conductivity lead to the highest ZT value of 0.58 at 150 °C in the Sn0.02Sb2Te3.02 sample. Our research offers a general wet-chemical route for the preparation of one-dimensional nanomaterials and probably promotes the practical thermoelectric applications of Sb2Te3-based materials at low temperatures.

Graphical abstract: Solvothermal synthesis of wire-like SnxSb2Te3+x with an enhanced thermoelectric performance

Supplementary files

Article information

Article type
Paper
Submitted
11 Mar 2016
Accepted
21 Mar 2016
First published
21 Mar 2016

Dalton Trans., 2016,45, 7483-7491

Solvothermal synthesis of wire-like SnxSb2Te3+x with an enhanced thermoelectric performance

H. Q. Yang, L. Miao, C. Y. Liu, X. Y. Wang, Y. Peng, A. J. Zhang, X. Y. Zhou, G. Y. Wang, C. Li and R. Huang, Dalton Trans., 2016, 45, 7483 DOI: 10.1039/C6DT00974C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements