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Fizika i Tekhnika Poluprovodnikov, 2017 Volume 51, Issue 6, Pages 759–762 (Mi phts6130)

This article is cited in 13 papers

XV International Conference ''Thermoelectrics and Their Applications-2016 St. Petersburg'', November 15-16, 2016

Effect of anion and cation substitution in tungsten disulfide and tungsten diselenide on conductivity and thermoelectric power

G. E. Yakovlevaa, A. I. Romanenkoa, A. S. Berdinskyb, V. A. Kuznetsova, A. Yu. Lednevaa, S. B. Artemkinaa, V. E. Fedorova

a Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
b Novosibirsk State Technical University

Abstract: The temperature dependences of the conductivity and thermoelectric power for a series of samples W$_{1-x}$Nb$_{x}$S$_{2}$, W$_{1-x}$Nb$_{x}$Se$_{2}$, WS$_{2-y}$Se$_{y}$, W$_{1-x}$Nb$_{x}$S$_{2-y}$Se$_{y}$ are studied at low temperatures. It is found that the cation substitution of W atoms with Nb leads to an increase in the conductivity and a decrease in the thermoelectric power. The anion substitution of S with Se atoms results in a simultaneous increase in the conductivity and thermoelectric power. The highest power factor among the samples studied is inherent to W$_{0.8}$Nb$_{0.2}$Se$_{2}$.

Received: 12.12.2016
Accepted: 19.12.2016

DOI: 10.21883/FTP.2017.06.44552.12


 English version:
Semiconductors, 2017, 51:6, 725–728

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