Enhancing thermoelectric properties of ScN films through twin domains

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00604694" target="_blank" >RIV/68378271:_____/25:00604694 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/25:10256670 RIV/00216208:11320/25:10490436
Result on the web
<a href="https://hdl.handle.net/11104/0365804" target="_blank" >https://hdl.handle.net/11104/0365804</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsadv.2024.100674" target="_blank" >10.1016/j.apsadv.2024.100674</a>

Result language
angličtina
Original language name
Enhancing thermoelectric properties of ScN films through twin domains
Original language description
Tailoring thermoelectric properties of ScN-based materials is of vital importance for their application, particularly at high operating temperatures. Here, we report on the thermoelectric properties of the ScN layers deposited on MgO (001) substrates by the DC reactive magnetron sputtering. The microstructure of the produced thin films is examined by X-ray diffraction and atomic force microscopy, while their chemical composition and contamination by defects are determined by X-ray photoelectron spectroscopy. The effect of temperature on the phonon properties of ScN layers, having implications for their thermoelectric properties, is explored by Raman spectroscopy. The results of our experiments are confronted with those following from the first-principles studies. We find that the ScN/MgO(001) layers with twin-domain structure reveal enhanced thermoelectric properties at elevated temperature as compared to those measured for almost defect- and domain-free layers, namely, enlarged Seebeck coefficient by about 30% and over two and a half times increased figure of merit at 800 K.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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