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Lookup NU author(s): Dr Elizabeth Corbin, Dr Michael Shaw, Dr Matthew Kitchin, Dr Jerry Hagon, Professor Milan Jaros
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We perform a systematic study of the factors governing the optical properties of type II Ga1-xInxSb/InAs superlattice structures. We map the parameter space corresponding to the layer widths, alloy concentrations and interface bonding types, and identify those structures for which the fundamental gap lies in the desired range for device application. In addition, we examine the higher lying miniband energies to assess the structures for favourable Auger recombination limits. The microscopic interface bonding configuration is shown to have a significant impact upon the magnitude of the fundamental gap, and confirms the requirement for full-bandstructure calculations in the evaluation of possible structures. We study the features of the optical spectra for those structures whose bandstructures are recognized as most suitable for detector applications.
Author(s): Corbin E; Shaw MJ; Jaros M; Hagon JP; Kitchin MR
Publication type: Article
Publication status: Published
Journal: Semiconductor Science and Technology
Year: 2001
Volume: 16
Issue: 4
Pages: 263-272
ISSN (print): 0268-1242
ISSN (electronic): 1361-6641
Publisher: Institute of Physics Publishing Ltd
URL: http://dx.doi.org/10.1088/0268-1242/16/4/314
DOI: 10.1088/0268-1242/16/4/314
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