This article is cited in 1 paper

Electronic properties of semiconductors

Study of electrical conductivity of La$_{2}$S$_{3}$

V. V. Kaminskii^a, M. M. Kazanin^a, M. A. Grevtsev^a, N. V. Sharenkova^a, S. Hirai^b, S. Jin^b, A. D. Polushina<sup>a

a</sup> Ioffe Institute, St. Petersburg
^b Muroran Institute of Technology, Muroran, Japan

Abstract: Samples of La$_{2}$S$_{3}$ were synthesized by sulfurization method. A study of the temperature dependence of conductivity of La$_{2}$S$_{3}$ was made in a range of 100–1000 K. At $T<$ 140 K, the electrical conduction has a hopping character. When the temperature rises, the electric transport gradually passes to the band mechanism of conduction. The activation energies of La$_{2}$S$_{3}$ conductivity at various temperatures are determined and a model of the band structure of La$_{2}$S$_{3}$ is proposed.

Keywords: electrical conductivity, band structure, sulfurization, hopping conductivity, lanthanum sesquisulphide, activation energy.

Received: 09.07.2019
Revised: 29.07.2019
Accepted: 29.08.2019

Language: English

 English version: Semiconductors, 2020, 54:1, 55–57

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