Electrical and thermoelectric properties of 90% Bi{sub 2}Te{sub 3}-5% Sb{sub 2}Te{sub 3}-5% Sb{sub 2}Se{sub 3} single crystals doped with SbI{sub 3}

Journal Article · Fri Dec 04 00:00:00 EST 1998 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(98)00393-5· OSTI ID:305412

Hyun, D B; Hwang, J S; Shim, J D; Kolomoets, N V ^[1]; Oh, T S ^[2]

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1. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Metals
2. Hong Ik Univ., Seoul (Korea, Republic of). Dept. of Metallurgy and Materials Science

Bi{sub 2}Te{sub 3}-Sb{sub 2}Te{sub 3}-Sb{sub 2}Se{sub 3} alloys with Sb{sub 2}Te{sub 3} and Sb{sub 2}Se{sub 3} contents up to 10 mol%, e.g., the 90% Bi{sub 2}Te{sub 3}-5% Sb{sub 2}Te{sub 3}-5% Sb{sub 2}Se{sub 3} alloy, are among the best n-type thermoelectric materials for Peltier coolers used near room temperature. In this work, the electrical and thermoelectric properties of Sbl{sub 3}doped 90% Bi{sub 2}Te{sub 3}-5% Sb{sub 2}Te{sub 3}-5% Sb{sub 2}Se{sub 3} alloys were characterized at temperatures ranging from 80K to 600K. The temperature dependencies of the Hall coefficient, carrier mobility, Seebeck coefficient and thermal conductivity were measured, and the scattering parameter and bandgap energy were determined.

• OSTI ID: 305412
• Journal Information: Scripta Materialia, Vol. 40, Issue 1; Other Information: PBD: 4 Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRICAL PROPERTIES
THERMOELECTRIC PROPERTIES
BISMUTH TELLURIDES
ANTIMONY TELLURIDES
ANTIMONY SELENIDES
DOPED MATERIALS
ANTIMONY IODIDES
TEMPERATURE DEPENDENCE