Open Access Nano Review

Unbound states in quantum heterostructures

R Ferreira1* and G Bastard12

Author Affiliations

1 Laboratoire Pierre Aigrain, Ecole Normale Supérieure, 24 rue Lhomond, F-75005, Paris, France

2 Institute of Industrial Sciences, Tokyo University, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan

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Nanoscale Research Letters 2006, 1:120-136  doi:10.1007/s11671-006-9000-1

Published: 27 September 2006

Abstract

We report in this review on the electronic continuum states of semiconductor Quantum Wells and Quantum Dots and highlight the decisive part played by the virtual bound states in the optical properties of these structures. The two particles continuum states of Quantum Dots control the decoherence of the excited electron – hole states. The part played by Auger scattering in Quantum Dots is also discussed.

Keywords:
Virtual bound states; Quantum Dots; Quantum Wells; Decoherence; Auger effect; Photodetectors