The Influence of the Size Effects on the Termoelectrical Properties of PbTe Thin Films

Authors M.A. Ruvinskii , O.B. Kostyuk , B.S. Dzundza

Vasyl Stefanyk Precarpathian National University, 57, Shevchenko St., 76025 Ivano-Frankivsk, Ukraine

Issue Volume 8, Year 2016, Number 2
Dates Received 23 March 2016; revised manuscript received 13 June 2016; published online 21 June 2016
Citation M.A. Ruvinskii, O.B. Kostyuk, B.S. Dzundza, J. Nano- Electron. Phys. 8 No 2, 02051 (2016)
DOI 10.21272/jnep.8(2).02051
PACS Number(s) 73.21.Fg, 73.50.Lw
Keywords Classical size effects, Quantum size effects, Thin film (101) , Lead telluride, Thermoelectric properties (3) .

Based on kinetic Boltzmann equation the boundary problem of calculating the conductivity and Seebeck coefficient for a film with a rectangular cross section is solved. Mirror-diffuse mechanism of reflection of the charge carriers from the surfaces of the film is considered. Calculations were performed for different thicknesses semiconductor n-PbTe. Based on the model of quantum flat rectangular and with infinitely high walls pit, the value of Seebeck coefficient S was calculated for n-PbTe. The quantum and classical size effects were experimentally investigated. The transition from the oscillating to monotonic dependences of the thermoelectric parameters of nanostructures based on n-PbTe has been proved.

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