Thermoelectric properties of symmetric and asymmetric double quantum well structures
Year: 2009
Type: article
Abstract: The electronic states and carrier transport in (100)PbTe/Pb 1 − x Eu x Te double quantum wells are theoretically analyzed. The dependences of the mobility and Seebeck coefficient on the thickness of the internal barrier in symmetric and asymmetric structures are investigated. It was found that at great distance between the wells even small violation of the structure symmetry and essential reconstruction of electron wave functions results in suppression of intersubband scattering with carriers transfer between the wells and provides the correct limit to isolated quantum well in kinetic coefficients. Some possibilities of increasing the thermoelectric power factor are found, and a suitable set of structure parameters is calculated within the proposed model.
Source: Semiconductors
Author: I. V. Sur
Institution: Technical University of Moldova
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2146144761