The Charge Distribution, Seebeck Coefficient, and Carrier Concentration of CuCr0.99Ln0.01S2 (Ln = Dy–Lu) | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Charge Distribution, Seebeck Coefficient, and Carrier Concentration of CuCr0.99Ln0.01S2 (Ln = Dy–Lu) Full article

Journal

Materials
ISSN: 1996-1944

Output data

Year: 2023, Volume: 16, Number: 6, Article number : 2431, Pages count : 10 DOI: 10.3390/ma16062431

Tags

layered copper–chromium disulfide; XPS; lanthanides; Seebeck coefficient; Hall voltage; thermoelectricity

Authors

Korotaev Evgeniy V. ¹ , Syrokvashin Mikhail M. ¹ , Filatova Irina Yu. ¹ , Sotnikov Aleksandr V. ¹ , Kalinkin Alexandr V. ²

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
2	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia

Funding (1)

Russian Science Foundation

19-73-10073

The atom oxidation states were determined using the binding energies of the core S2p-, Cu2p-, Cr2p-, and Ln3d-levels in CuCr0.99Ln0.01S2 (Ln = Dy–Lu) solid solutions. The charge distribution on the matrix elements (Cu, Cr, and S) remained unaffected after cationic substitution. The sulfur atoms were found to be in the S2− oxidation state, the copper–Cu+, and the chromium–Cr3+. The cationic substitution of the initial CuCrS2-matrix occurred via the isovalent mechanism. The obtained results were compared with the electrophysical properties for CuCr0.99Ln0.01S2. The measured carrier concentration was from 1017 to 1018 cm−3. The largest Seebeck coefficient value of 157 µV/K was measured for CuCr0.99Yb0.01S2 at 500 K. The cationic substitution with lanthanides allowed one to enhance the Seebeck coefficient of the initial CuCrS2-matrix.

Korotaev E.V. , Syrokvashin M.M. , Filatova I.Y. , Sotnikov A.V. , Kalinkin A.V.
The Charge Distribution, Seebeck Coefficient, and Carrier Concentration of CuCr0.99Ln0.01S2 (Ln = Dy–Lu)
Materials. 2023. V.16. N6. 2431 :1-10. DOI: 10.3390/ma16062431 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	Feb 22, 2023
Accepted:	Mar 17, 2023
Published print:	Mar 18, 2023
Published online:	Mar 18, 2023

Web of science:	WOS:000958123400001
Scopus:	2-s2.0-85151551671
Elibrary:	54041609
Chemical Abstracts:	2023:649365
PMID:	36984309
OpenAlex:	W4327972572

DB	Citing
Web of science	6
Scopus	6
Elibrary	7
OpenAlex	6