Phonon drag and inelastic electron scattering by acoustic phonons in semiconductor superlattice

Author

Ivanov, Yu.V. ; Vedernikov, M.V.

Author_Institution

A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia

fYear

1999

fDate

Aug. 29 1999-Sept. 2 1999

Firstpage

217

Lastpage

221

Abstract

The electron relaxation time due to acoustical phonon scattering, the electrical conductivity, and the phonon-drag thermopower of semiconductor superlattices with quasi-two-dimensional quantum wells and quasi-one-dimensional quantum wires are calculated. The inelasticity of the scattering of charge carriers is taken into account. It is shown that the phonon-drag thermopower of a superlattice can be three orders of magnitude greater than the corresponding thermopower of a bulk semiconductor.

Keywords

electrical conductivity; electron relaxation time; phonon drag; semiconductor quantum wells; semiconductor quantum wires; semiconductor superlattices; thermoelectric power; acoustical phonon scattering; electrical conductivity; electron relaxation time; inelastic electron scattering; phonon-drag thermopower; quasi-one-dimensional quantum wires; quasi-two-dimensional quantum wells; semiconductor superlattice; Acoustic scattering; Charge carrier processes; Charge carriers; Chemicals; Conductivity; Electrons; Particle scattering; Phonons; Semiconductor superlattices; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 1999. Eighteenth International Conference on

Conference_Location

Baltimore, MD, USA

ISSN

1094-2734

Print_ISBN

0-7803-5451-6

Type

conf

DOI

10.1109/ICT.1999.843372

Filename

843372