A rate equation formalism for electron and phonon dynamics in undoped quantum wells

J. L. Educato; J. P. Leburton

doi:10.1063/1.354653

A rate equation formalism for electron and phonon dynamics in undoped quantum wells

J. L. Educato, J. P. Leburton

Electrical and Computer Engineering

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Abstract

A theoretical investigation of the electron and phonon dynamics during intersubband transitions in undoped multiple GaAs-Al_xGa _1-xAs quantum well structures is presented within a rate equation formulation where particle and energy flow equations are derived from Boltzmann's equation using Fermi statistics. This work focuses upon the role played by quantized polar optical phonons known as slab modes and interface modes. Photoexcited carrier behavior is analyzed in relation with recent Raman measurements and shows time constants for electron relaxation in agreement with experimental data.

Original language	English (US)
Pages (from-to)	2626-2632
Number of pages	7
Journal	Journal of Applied Physics
Volume	74
Issue number	4
DOIs	https://doi.org/10.1063/1.354653
State	Published - 1993

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General Physics and Astronomy

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AB - A theoretical investigation of the electron and phonon dynamics during intersubband transitions in undoped multiple GaAs-AlxGa 1-xAs quantum well structures is presented within a rate equation formulation where particle and energy flow equations are derived from Boltzmann's equation using Fermi statistics. This work focuses upon the role played by quantized polar optical phonons known as slab modes and interface modes. Photoexcited carrier behavior is analyzed in relation with recent Raman measurements and shows time constants for electron relaxation in agreement with experimental data.

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A rate equation formalism for electron and phonon dynamics in undoped quantum wells

Abstract

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