Явища переносу в парофазних конденсатах PbTe-Bi2Te3 на поверхні слюди

• Дата: 2014
• Автори: Freyik, D. M., Dzundza, B. S., Yavorskyy, Ya. S., Lyuba, T. S., Matkivskiy, O. N.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine 2014
• Теми: парофазні конденсати PbTe-Bi2Te3; поверхня слюди; термоелектричні параметри приповерхневих шарів.
• Онлайн доступ: https://www.cpts.com.ua/index.php/cpts/article/view/265
• Назва журналу: Chemistry, Physics and Technology of Surface

Dependences of the structural characteristics and electrical properties of thin films of solid solutions PbTe-Bi2Te3containing 1, 3, 5 mоl. % Bi2Te3, deposited in open vacuum for fresh chips (0001) of mica muscovite, on their thickness d=(0.1–1) microns were studied. The effective mean free path of charge carriers was detected and the dominant scattering mechanism was determined. Within the two-layer Petritz model an estimation the thermoelectric parameters extent of surface layers was carried out. It has been found that the condensate has stable n-type conductivity and there is diffuse scattering on the surface, which leads to a significant decrease in relation to the films volume for mobility, conductivity, and increasing Seebeck efficient.