✦ LIBER ✦

Nonlinear Theory of Coupled Electron-Hole Transport

✍ Scribed by H.L. Cui; X.L. Lei; N.J.M. Horing

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 134 KB
Volume: 13
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1993.1043

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✦ Synopsis

A theoretical investigation is carried out to examine the Coulomb interaction effects in linear and nonlinear transport of a coupled electron-hole system which consists of an electron layer and a hole layer separated by a potential barrier. In this we apply the balance equation method to examine the induced current in one charged layer when the other layer is subject to a constant electric field. Nonlinear balance equations are developed for both the electrons and the holes, with Coulomb interactions among them, as well as interactions of the charge carriers with phonons and impurities. Numerically obtained linear results exhibit qualitative agreement with experimental data in regard to dependencies on temperature and carrier densities. Nonlinear effects are shown to be important at low temperatures, in agreement with experimental results.

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