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Issue 13, 2012
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Preparation and thermoelectric properties of sulfur doped Ag2Te nanoparticles via solvothermal methods

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Abstract

In this work, n-type Ag2Te nanoparticles are prepared by a solvothermal approach with uniform and controllable sizes, e.g. 5–15 nm. The usage of dodecanethiol during the synthesis effectively introduces sulfur doping into the sample, which optimizes the charge carrier concentration of the nanoparticles to >1 × 1020 cm−3. This allows us to achieve the desired electrical resistivities of <5 × 10−6 Ω m. It is demonstrated that Ag2Te particles prepared by this solvothermal process can exhibit high ZT values, e.g. 15 nm Ag2Te nanoparticles with effective sulphur doping show a maximum ZT value of ∼0.62 at 550 K.

Graphical abstract: Preparation and thermoelectric properties of sulfur doped Ag2Te nanoparticles via solvothermal methods

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Publication details

The article was received on 27 Feb 2012, accepted on 17 Apr 2012 and first published on 24 Apr 2012


Article type: Paper
DOI: 10.1039/C2NR30469D
Nanoscale, 2012,4, 3926-3931

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    Preparation and thermoelectric properties of sulfur doped Ag2Te nanoparticles via solvothermal methods

    W. Zhou, W. Zhao, Z. Lu, J. Zhu, S. Fan, J. Ma, H. H. Hng and Q. Yan, Nanoscale, 2012, 4, 3926
    DOI: 10.1039/C2NR30469D

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