Инд. авторы:	Ovsyannikov S.V., Morozova N.V., Korobeinikov I.V., Lukyanova L.N., Manakov A.Y., Likhacheva A.Y., Ancharov A.I., Vokhmyanin A.P., Berger I.F., Usov O.A., Kutasov V.A., Kulbachinskii V.A., Okada T., Shchennikov V.V.
Заглавие:	Enhanced power factor and high-pressure effects in (Bi,Sb)2(Te,Se)3 thermoelectrics
Библ. ссылка:	Ovsyannikov S.V., Morozova N.V., Korobeinikov I.V., Lukyanova L.N., Manakov A.Y., Likhacheva A.Y., Ancharov A.I., Vokhmyanin A.P., Berger I.F., Usov O.A., Kutasov V.A., Kulbachinskii V.A., Okada T., Shchennikov V.V. Enhanced power factor and high-pressure effects in (Bi,Sb)2(Te,Se)3 thermoelectrics // Applied Physics Letters. - 2015. - Vol.106. - Iss. 14. - Art.143901. - ISSN 0003-6951. - EISSN 1077-3118.
Внешние системы:	DOI: 10.1063/1.4916947; SCOPUS: 2-s2.0-84926622655; WoS: 000352820700055;
Реферат:	eng: We investigated the effects of applied high pressure on thermoelectric, electric, structural, and optical properties of single-crystalline thermoelectrics, Bi2Te3, BixSb2-xTe3 (x = 0.4, 0.5, 0.6), and Bi2Te2.73Se0.27 with the high thermoelectric performance. We established that moderate pressure of about 2-4 GPa can greatly enhance the thermoelectric power factor of all of them. X-ray diffraction and Raman studies on Bi2Te3 and Bi0.5Sb1.5Te3 found anomalies at similar pressures, indicating a link between crystal structure deformation and physical properties. We speculate about possible mechanisms of the power factor enhancement and suppose that pressure/stress tuning can be an effective tool for the optimization of the thermoelectric performance. © 2015 AIP Publishing LLC.
Ключевые слова:	Electric power factor; Optical properties; Pressure effects; Thermoelectric power; Thermoelectricity; X ray diffraction; Effective tool; Moderate pressures; Possible mechanisms; Single-crystalline; High pressure effects; Thermoelectrics; Thermoelectric power factors; Thermoelectric performance; Structure deformation; Crystal structure;
Издано:	2015
Физ. характеристика:	143901