Structural, Dimensional and Thermoelectric Properties of Melt Spun p-Bi0,5Sb1,5Te3

Автор(ы) A.A. Melnikov1,2, V.G. Kostishin1 , S.A. Kichik2, V.V. Alenkov2

1 National University of Science and Technology "MISIS", 4, Leninskiy Pr., 119049 Moscow, Russia

2 Crystal Ltd, 45B, Stantsionnaya Str., 141060 Korolev, Moscow region, Russia

Выпуск Том 6, Год 2014, Номер 3
Даты Получено 19.05.2014, в отредактированной форме – 03.07.2014, опубликовано online – 15.07.2014
Ссылка A.A. Melnikov, V.G. Kostishin, S.A. Kichik, V.V. Alenkov, J. Nano- Electron. Phys. 6 No 3, 03061 (2014)
PACS Number(s) 72.15.Jf, 72.20.Pa
Ключевые слова Thermoelectricity (2) , Melt spinning, Melt spun powders, Bismuth and antimony telluride, Spark plasma sintering (2) .
Аннотация Thermoelectric melt spun p-Bi0,5Sb1,5Te3 powders were obtained and their structural properties were studied. It was established that the crystallites constituting the powder particles are nanofragmented. Powders were compacted by vacuum hot pressing and spark plasma sintering. Thermoelectric characteristics of obtained samples were investigated in 100 K-700 K temperature range. The samples prepared by above methods posses low thermal conductivity while retaining values of the Seebeck coefficient and electrical conductivity comparable to conventional crystallized materials, thereby thermoelectric efficiency ZT reaches 1.05-1.15 at 330-350 K.

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