Infrared and thermoelectric power generation in thin atomic layer deposited Nb-doped TiO2 films

Harkirat S. Mann, Brian N. Lang, Yosyp Schwab, Janne-Petteri Niemelä, Maarit Karppinen, Giovanna Scarel

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    Abstract

    Infrared radiation is used to radiatively transfer heat to a nanometric power generator (NPG) device with a thermoelectric Nb-doped TiO2 film deposited by atomic layer deposition (ALD) as the active element, onto a borosilicate glass substrate. The linear rise of the produced voltage with respect to the temperature difference between the “hot” and “cold” junctions, typical of the Seebeck effect, is missing. The discovery of the violation of the Seebeck effect in NPG devices combined with the ability of ALD to tune thermoelectric thin film properties could be exploited to increase the efficiency of these devices for energy harvesting purposes.
    Original languageEnglish
    Article number01A124
    Pages (from-to)1-7
    JournalJOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A
    Volume33
    Issue number1
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

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