Реферат: The charge distribution study of metal atoms in CuCr0.99Ln0.01S2 (Ln = Pr–Tb) solid solutions was carried out using X-ray photoelectron spectroscopy (XPS). The analysis of the binding energy of S2p, Cu2p, Cr2p, Ln3d and Ln4d levels allows one to determine the oxidation state of atoms. Copper atoms were found to be monovalent. Chromium and lanthanide atoms were found to be in the trivalent state. Sulfur atoms were found to be in the divalent state. Cationic substitution was found to occur via an isovalent mechanism of Cr3+ to Ln3+. The obtained results were used for the interpretation of the Seebeck coefficient increase for CuCr0.99Ln0.01S2 solid solutions in contrast to the initial CuCrS2 matrix. The largest Seebeck coefficient values of 142 and 148 µV/K were observed at 500 K for CuCr0.99Sm0.01S2 and CuCr0.99Pr0.01S2, respectively. The obtained values are 1.4 times greater in comparison with those for the initial matrix (105 µV/K).

Библиографическая ссылка: Korotaev E.V. , Syrokvashin M.M. , Filatova I.Y. , Sotnikov A.V. , Kalinkin A.V.
Charge Distribution in Layered Lanthanide-Doped CuCr0.99Ln0.01S2 (Ln = Pr–Tb) Thermoelectric Materials
Materials. 2022. V.15. N24. 8747 :1-12. DOI: 10.3390/ma15248747 WOS Scopus РИНЦ OpenAlex

Идентификаторы БД:

Web of science:	WOS:000902739300001
Scopus:	2-s2.0-85144624690
РИНЦ:	50398755
OpenAlex:	W4311858868

Цитирование в БД:

БД	Цитирований
OpenAlex	4
Scopus	4
РИНЦ	4

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