Thermoelectric power of SrCe0.95Y0.5O3

Erik Ahlgren

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Thermoelectric power and electrical conductivity of SrCe0.95Y0.05O3-delta have been determined in a range of atmospheres and temperatures. The thermoelectric power is negative in reducing and positive in oxidizing atmospheres. The data indicate a transition at about 800-1000 degrees C at oxygen partial pressure approximate to 10(-5) atm between regimes with different type of main charge carrier. Low oxygen partial pressure data do not indicate any conductivity contribution from n-type electronic carriers. The water vapour partial pressure dependence is found to be in accordance with theory and shows that these experiments can be used to detect proton conductivity.
    Original languageEnglish
    JournalSolid State Ionics
    Volume97
    Issue number1-4
    Pages (from-to)489-495
    ISSN0167-2738
    DOIs
    Publication statusPublished - 1997

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