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Defect states in type-II strained-layer superlatticese
Conference proceeding   Open access

Defect states in type-II strained-layer superlatticese

Michael E. Flatte and Craig E. Pryor
Quantum Sensing and Nanophotonic Devices VII, Vol.7608
Proceedings of SPIE
01/01/2010
DOI: 10.1117/12.846915
url
https://doi.org/10.1117/12.846915View
Published (Version of record) Open Access

Abstract

The electronic structure of isoelectronic defects, donors and acceptors is calculated within a full superlattice picture for InAs/GaSb and InAs/GaInSb superlattices. The wavefunctions associated with these states extend beyond a typical layer width for the superlattices. Thus band alignments between the layers as well as interface properties are predicted to dramatically change these defects' binding energy as well as their influence on superlattice electronic, optical and transport properties. Defect properties are also substantially modified by their location within a superlattice layer.
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