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Title: Envelope function calculations for bandstructure engineering
Author: Batty, William
ISNI:       0000 0001 3451 4366
Awarding Body: University of Surrey
Current Institution: University of Surrey
Date of Award: 1990
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In this thesis we describe the calculation of the electronic subband structures of semiconductor quantum wells and superlattices in the Envelope Function Approximation. We show how the results of these calculations demonstrate the possibility for improvement of long-wavelength semiconductor laser device characteristics by bandstructure engineering. We present calculations for proposed strained layer and (111)-grown laser structures. We describe the observation of the pressure dependence of the light-hole mass in a quantum well within the framework of our calculational scheme, perform calculations for SiGe superlattices and give analytic results for quantum well, valence band-edge, effective masses in a 2-band (heavy-hole/light-hole) model.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Electronic bandstructures/semiconductors