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High thermoelectric performance of tellurium doped paracostibite

Journal of Materials Chemistry C, ISSN: 2050-7526, Vol: 4, Issue: 15, Page: 3094-3100
2016
  • 35
    Citations
  • 0
    Usage
  • 15
    Captures
  • 0
    Mentions
  • 0
    Social Media
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Metrics Details

  • Citations
    35
    • Citation Indexes
      33
    • Patent Family Citations
      2
      • Patent Families
        2
  • Captures
    15

Article Description

Paracostibite (CoSbS) has recently been identified as a promising thermoelectric (TE) material, yet its full potential remains to be attained. We present herein an integrated method based on high throughput DFT computations validated with experiments that has allowed us to identify tellurium on antimony sites as a much more effective dopant than the formerly used nickel on cobalt sites. By carrying out a systematic adjustment optimization of the experimental parameters, we achieve a power factor as high as 2.7 mW m K at 543 K, which is maintained up to 730 K. This is, to the best of our knowledge, the largest value reported for polycrystalline metal sulfides.

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