Anomalously high thermoelectric power factor in epitaxial ScN thin films
2011 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 99, no 23, 232113- p.Article in journal (Refereed) Published
Thermoelectric properties of ScN thin films grown by reactive magnetron sputtering on Al2O3(0001) wafers are reported. X-ray diffraction and elastic recoil detection analyses show that the composition of the films is close to stoichiometry with trace amounts (similar to 1 at. % in total) of C, O, and F. We found that the ScN thin-film exhibits a rather low electrical resistivity of similar to 2.94 mu Omega m, while its Seebeck coefficient is approximately similar to-86 mu V/K at 800 K, yielding a power factor of similar to 2.5 x 10(-3) W/mK(2). This value is anomalously high for common transition-metal nitrides.
Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2011. Vol. 99, no 23, 232113- p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-75290DOI: 10.1063/1.3665945ISI: 000298006100041OAI: oai:DiVA.org:liu-75290DiVA: diva2:505902
Funding Agencies|Swedish Research Council (VR)|621-2009-5258|2012-02-272012-02-242015-05-08