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      https://www.ias.ac.in/article/fulltext/boms/041/01/0032

    • Keywords

       

      Thermoelectric; X-ray diffraction; manganites.

    • Abstract

       

      We report the high-temperature thermoelectric properties of electron- and hole-doped calcium manganese oxidematerials, which exhibit potential of a thermoelectric device for conversion of wasteful thermal energy into useful electricalenergy. Electron-doped Ca$_{0.9}$R$_{0.1}$MnO$_3$ (R $=$ La, Yb) and hole-doped Ca$_4$Mn$_{2.85}$Nb$_{0.15}$O$_{10}$ manganites chosen for the present study were prepared by solid-state reaction of starting compounds and characterized by powder X-ray diffraction. Electrical resistivity and thermopower were measured as a function of temperature to determine the power factor for all the three compounds studied. We discuss these results according to their application potential as a thermoelectric device.

    • Author Affiliations

       

      APOORVA P JOSHI1 S BHATTACHARYA2 S RAYAPROL3

      1. Sri Jaychamrajendra College of Engineering, Mysuru 570006, India
      2. Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
      3. UGC-DAE Consortium for Scientific Research, Mumbai Centre, BARC Campus, Trombay, Mumbai 400085, India
    • Dates

       
  • Bulletin of Materials Science | News

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