Reshma Madathil

• Mayandi, Jeyanthinath; Madathil, Reshma Krishnan; Abinaya, C; Bethke, Kevin; Venkatachalapathy, Vishnukanthan; Rademann, Klaus; Norby, Truls Eivind & Finstad, Terje (2021). Al-doped ZnO prepared by co-precipitation method and its thermoelectric characteristics. Materials Letters.  ISSN 0167-577X.  288 . doi: 10.1016/j.matlet.2021.129352 Vis sammendrag

  We report on structural and electrical characterization of zinc oxide material containing aluminum (Al:ZnO) prepared by a co-precipitation technique using different zinc and aluminum precursors. The as-prepared powders were calcinated and pre-annealed at 600 °C and 1200 °C. These were cold-pressed to pellets and sintered at 1000 °C. We also prepared ZnO material with no Al for comparisons. The electrical and thermal conductivity, as well as the Seebeck coefficient, were measured. These properties were correlated with structural analysis by X-ray diffraction characterization and scanning electron microscopy. The process yields a nanostructured material with much reduced thermal conductivity.

• Schuler, Raphael; Madathil, Reshma Krishnan & Norby, Truls (2021). Versatile four-leg thermoelectric module test setup adapted to a commercial sample holder system for high temperatures and controlled atmospheres. Review of Scientific Instruments.  ISSN 0034-6748.  92(4) . doi: 10.1063/5.0032698

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