TY - JOUR N2 - The effects of hydrogen absorption and manganese substitution on structural, electronic, optical, and thermoelectric properties of silicon-carbon nanotubes (SiCNT) are studied using the density functional theory and the GGA approximation. An examination of the PDOS curves and the electronic band structure showed that the Mn substitution leads to an increase in magnetic anisotropy and the occurrence of semi-metallic behavior and that the hydrogen absorption shifts the band gap toward the lower energies. A study of these nanostructures’ thermoelectric behavior reveals that the H absorption leads to a significant escalation in the figure of merit of the SiCNT to about 1.6 in the room temperature range. The effects of the H absorption on this nanotube’s optical properties, including the dielectric functions and its absorption spectra, are also investigated. L1 - http://journals.pan.pl/Content/123187/PDF/AMM-2022-2-02-Shafiei%20Gol.pdf L2 - http://journals.pan.pl/Content/123187 PY - 2022 IS - No 2 EP - 403 DO - 10.24425/amm.2022.137770 KW - DFT KW - SiC:Mn-HNT KW - electronic property KW - thermometric KW - optical property A1 - Shahraki, Amir Toofani A1 - Gol, Heydar Ali Shafiei A1 - Kimiagar, Salimeh A1 - Dehnavi, Naser Zare PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 67 DA - 2022.06.10 T1 - Enhancement of Thermoelectric Efficiency and Optical Properties of Hydrogen Absorption in SiC:Mn Nanotube SP - 397 UR - http://journals.pan.pl/dlibra/publication/edition/123187 T2 - Archives of Metallurgy and Materials ER -