Thermoelectric efficiency of the extruded samples of Bi0.5Sb1.5Te3 and Bi2Te2.7Se0.3 solid solutions with different grain size

E. G. Djafarov; T. D. Aliyeva; D. Sh. Abdinov

doi:10.1117/12.407755

28 November 2000 Thermoelectric efficiency of the extruded samples of Bi_0.5Sb_1.5Te₃ and Bi₂Te_2.7Se_0.3 solid solutions with different grain size

E. G. Djafarov, T. D. Aliyeva, D. Sh. Abdinov

Author Affiliations +

Proceedings Volume 4340, 16th International Conference on Photoelectronics and Night Vision Devices; (2000) https://doi.org/10.1117/12.407755
Event: XVI International Conference on Photoelectronics and Night Vision Devices, 2000, Moscow, Russian Federation

Abstract

The effect of grain size of a starting powder and heat treatment on thermoelectric efficiency (Z) of extruded samples of Bi_0.5Sb_1.5Te₃ and Bi₂Te_2.7Se_0.3 solid solutions in temperature range from 77 up to 350 K. It is clarified, that in case of Bi_0.5Sb_1.5Te₃ solid solution maximal Z is observed in samples with of grains 630 microns and passed heat treatment in vacuum at 690K within 5 hours. In a case of Bi₂Te_2.7Se_0.3 solid solutions in samples with dimension of grains 630 microns, non-passed heat treatment. It is shown, that the obtained results are satisfactorily explained by effect of texture and structural imperfection son density and mobility of charge carriers, and also on the scattering mechanism of photons in extruded samples of the investigated solid solutions.

Citation Download Citation

E. G. Djafarov, T. D. Aliyeva, and D. Sh. Abdinov "Thermoelectric efficiency of the extruded samples of Bi_0.5Sb_1.5Te₃ and Bi₂Te_2.7Se_0.3 solid solutions with different grain size", Proc. SPIE 4340, 16th International Conference on Photoelectronics and Night Vision Devices, (28 November 2000); https://doi.org/10.1117/12.407755

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available