This article is cited in 20 papers

Electronic and optical properties of semiconductors

Galvanomagnetic and thermoelectric properties of BiTeBr and BiTeI single crystals and their electronic structure

V. A. Kul'bachinskii, V. G. Kytin, Z. V. Lavrukhina, A. N. Kuznetsov, A. V. Shevelkov

Lomonosov Moscow State University

Abstract: BiTeI and BiTeBr single crystals are synthesized by the Bridgman method, and their galvanomagnetic and thermoelectrical properties are investigated. Both semiconductors have $n$-type conductivity. The thermoelectric efficiency of BiTeBr is much higher than that of BiTeI, which is related mainly to a larger See-beck coefficient for the former compound. For both crystals, the band structure is calculated from the density-functional theory. It is shown that both compounds are semiconductors with an indirect energy band gap.

Received: 04.05.2010
Accepted: 18.05.2010

 English version: Semiconductors, 2010, 44:12, 1548–1553

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