Experiments with semiconducting p-type misfit compound

Hanna Heinonen, Jyrki Tervo

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Ca3Co4O9 is a p-type semiconductor and a promising thermoelectric material with misfit layer structure. Cobalt-based layered structure materials have been studied as thermoelectric material candidates because of their nontoxicity, light weight, high thermal and chemical stability and oxidation resistance at high temperature. The operating area of Ca3Co4O9 in thermoelectric applications is roughly from 800K to 1000K. Ca3Co4O9 powders were synthetized by a sol-gel method which enables fabrication of high purity and homogeneous particles. Calcium and cobalt nitrate hydrates were used as feedstock and citric acid as complexing agent in the sol-gel procedure. Powders were calcinated at 1123K and further processing by ball milling. Pure Ca3Co4O9 powders were sintered by SPS and conventional method.
Original languageEnglish
Title of host publication9th European Conference on Thermoelectrics ECT2011
EditorsK. M. Paraskevopoulos , E. Hatzikraniotis
PublisherAmerican Institute of Physics AIP
Pages351-353
ISBN (Print)978-0-7354-1048-0
DOIs
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics
Number1
Volume1449

Fingerprint

Powders
Experiments
Chemical stability
Oxidation resistance
Ball milling
Cobalt
Hydrates
Citric Acid
Feedstocks
Sol-gel process
Sol-gels
Thermodynamic stability
Semiconductor materials
Fabrication
Processing
Temperature
cobaltous nitrate
calcium nitrate

Keywords

  • thermoelectric oxide
  • p-type
  • misfit compound

Cite this

Heinonen, H., & Tervo, J. (2011). Experiments with semiconducting p-type misfit compound. In K. M. Paraskevopoulos , & E. Hatzikraniotis (Eds.), 9th European Conference on Thermoelectrics ECT2011 (pp. 351-353). American Institute of Physics AIP. AIP Conference Proceedings, No. 1, Vol.. 1449 https://doi.org/10.1063/1.4731569
Heinonen, Hanna ; Tervo, Jyrki. / Experiments with semiconducting p-type misfit compound. 9th European Conference on Thermoelectrics ECT2011. editor / K. M. Paraskevopoulos ; E. Hatzikraniotis. American Institute of Physics AIP, 2011. pp. 351-353 (AIP Conference Proceedings; No. 1, Vol. 1449).
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Heinonen, H & Tervo, J 2011, Experiments with semiconducting p-type misfit compound. in KM Paraskevopoulos & E Hatzikraniotis (eds), 9th European Conference on Thermoelectrics ECT2011. American Institute of Physics AIP, AIP Conference Proceedings, no. 1, vol. 1449, pp. 351-353. https://doi.org/10.1063/1.4731569

Experiments with semiconducting p-type misfit compound. / Heinonen, Hanna; Tervo, Jyrki.

9th European Conference on Thermoelectrics ECT2011. ed. / K. M. Paraskevopoulos ; E. Hatzikraniotis. American Institute of Physics AIP, 2011. p. 351-353 (AIP Conference Proceedings; No. 1, Vol. 1449).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Heinonen H, Tervo J. Experiments with semiconducting p-type misfit compound. In Paraskevopoulos KM, Hatzikraniotis E, editors, 9th European Conference on Thermoelectrics ECT2011. American Institute of Physics AIP. 2011. p. 351-353. (AIP Conference Proceedings; No. 1, Vol. 1449). https://doi.org/10.1063/1.4731569