Publication

Hole subbands in quantum wells: Comparison between theory and hot-electron-acceptor-luminescence experiments

Alfredo Pasquarello
1992
Journal Articles

Abstract

Recently Zachau, Kash, and Masselink [Phys. Rev. B 44, 4048 (1991)] determined hole-subband dispersions in quantum wells experimentally with the use of hot-electron-acceptor luminescence. We present here results of multiple-band calculations, which are in very good agreement with these experiments. We also discuss the effects of subband anisotropy and its effect on the line shape. When the broadening is sufficiently small we predict a double-peak structure. Â© 1992 The American Physical Society.

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https://infoscience.epfl.ch/entities/publication/7ba0ad50-31f2-4912-b61b-de0eb38ec968

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Alfredo Pasquarello
1992
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/7ba0ad50-31f2-4912-b61b-de0eb38ec968

About this result

Related concepts (26)

Quantum well

A quantum well is a potential well with only discrete energy values. The classic model used to demonstrate a quantum well is to confine particles, which were initially free to move in three dimensions, to two dimensions, by forcing them to occupy a planar region. The effects of quantum confinement take place when the quantum well thickness becomes comparable to the de Broglie wavelength of the carriers (generally electrons and holes), leading to energy levels called "energy subbands", i.e.

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Hole subbands in quantum wells: Comparison between theory and hot-electron-acceptor-luminescence experiments

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