THERMOELECTRIC PROPERTIES AND HALL-EFFECT OF BI2TE3-XSEX POLYCRYSTALLINE MATERIALS PREPARED BY A HOT PRESS METHOD

Authors
YASHIMA I WATANAVE H OGISU T TSUKUDA R SATO S
Citation
I. Yashima et al., THERMOELECTRIC PROPERTIES AND HALL-EFFECT OF BI2TE3-XSEX POLYCRYSTALLINE MATERIALS PREPARED BY A HOT PRESS METHOD, JPN J A P 1, 37(5A), 1998, pp. 2472-2473
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
37
Issue
5A
Year of publication
1998
Pages
2472 - 2473
Database
ISI
SICI code
Abstract
Bi2T3-xSex (0 less than or equal to x < 1) polycrystalline solids are prepared by a hat press method and their thermoelectric properties are studied. The samples show the maximum value of Z = 2.3 x 10(-3) K-1 a t x=0.22. The lattice thermal conductivity is smaller than that of a s ingle crystal. The lattice constant and power factor decrease upon inc reasing the selenium substitution while thermal conductivity decreases for x values up to 0.33 and becomes constant for a: values greater th an 0.33.