Open AccessВклад распределенного эффекта Пельтье в эффективность ветви термоэлектрического охладителя
Author(s) -
О.И. Марков
Publication year - 2022
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2022.01.51811.27
Subject(s) - thermoelectric effect , charge carrier , boundary value problem , joule (programming language) , materials science , thermoelectric materials , joule effect , condensed matter physics , joule heating , physics , mathematics , thermodynamics , mathematical analysis , power (physics) , composite material
An attempt is made to calculate the contribution of the distributed Peltier effect to the efficiency of the branch of the thermoelement Z for various types of impurity distribution. For this purpose, the boundary problem of thermal balance in the branch of the thermoelectric element was solved numerically, taking into account the distributed Peltier effect. The case of non-degenerate charge carriers was considered within the framework of the standard two-band model. The parameters of charge carriers were selected close to thermoelectrics based on bismuth and antimony tellurides. As the calculation in the framework of the two-zone model showed, the use of the distributed Peltier effect leads only to partial absorption of Joule heat, which contributes to an increase in the overall efficiency of the branch. In this case, the Z parameter along a significant part of the branch takes values significantly less than the maximum value