Influence of branch resistivity and transitional contact resistance on the thermoelectrical properties of thermoelements

T. D. Alieva; N. M. Akhundova; D. Sh. Abdinov

doi:10.1117/12.350908

10 June 1999 Influence of branch resistivity and transitional contact resistance on the thermoelectrical properties of thermoelements

T. D. Alieva, N. M. Akhundova, D. Sh. Abdinov

Author Affiliations +

Proceedings Volume 3819, International Conference on Photoelectronics and Night Vision Devices; (1999) https://doi.org/10.1117/12.350908
Event: International Conference on Photoelectronics and Night Vision Devices, 1998, Moscow, Russian Federation

Abstract

The dependence of thermoelectrical efficiency Z of thermoelements based on Bi_0.5Sb_1.5Te₃ and Bi₂Te_2.7Se_0.3 on the branches materials resistivity p at different values or resistance or transitional contacts r and branches length 1; on branches length 1 at different p and r; and on transitional contacts resistance r at different p and 1 of branches have been studied. It has been found, that for given commutation alloy the length l_k, after which the strong reduction of (Delta) T_max had been observed with decreasing branches length, does not depend on branches resistivity. Although, at the transition from alloy with small contact resistance to the large ones, l_k is shifted to large branch lengths. It can be explained by the fact that for the same alloy r itself depends on crystals p; the majority charge carriers concentration in crystal is decreased with increasing p, that leads to the increase of crystal-contact alloy junction resistance. It has been found that r of contacts is directly proportional to branches p. Therefore, the ratio r/p remains r is changed under the transition from one alloy to the other, and it leads to the shifting of l_k value.

Citation Download Citation

T. D. Alieva, N. M. Akhundova, and D. Sh. Abdinov "Influence of branch resistivity and transitional contact resistance on the thermoelectrical properties of thermoelements", Proc. SPIE 3819, International Conference on Photoelectronics and Night Vision Devices, (10 June 1999); https://doi.org/10.1117/12.350908

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