TRANSPORT-PROPERTIES OF N-TYPE BI2(TE1-XSEX)3 SINGLE-CRYSTAL SOLID-SOLUTIONS (X-LESS-THAN-OR-EQUAL-TO-0.05)

Authors
CARLE M PIERRAT P LAHALLEGRAVIER C SCHERRER S SCHERRER H
Citation
M. Carle et al., TRANSPORT-PROPERTIES OF N-TYPE BI2(TE1-XSEX)3 SINGLE-CRYSTAL SOLID-SOLUTIONS (X-LESS-THAN-OR-EQUAL-TO-0.05), Journal of physics and chemistry of solids, 56(2), 1995, pp. 201-209
Citations number
26
Categorie Soggetti
Physics, Condensed Matter",Chemistry
Journal title
Journal of physics and chemistry of solids → ACNP
ISSN journal
00223697
Volume
56
Issue
2
Year of publication
1995
Pages
201 - 209
Database
ISI
SICI code
0022-3697(1995)56:2<201:TONBSS>2.0.ZU;2-V
Abstract
Measurements of the transport properties of Bi2(Te1-xSex)3 single crys tal solid solutions with x = 0.025 and x = 0.05 are described as a fun ction of deviations from stoichiometry. From measurements of the elect rical and thermal conductivities, and the Seebeck coefficient at room temperature, a maximum in the figure of merit Z = 2.9 x 10(3) K-1 was determined for the solid solution containing 2.5% Bi2Se3. Analysis of the results allows us to present the main features of the band structu re and the transport properties of these solid solutions.