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Chang, Yia-Chung Sanders, Gary Donald 2011-06-03T17:59:41Z 2011-06-03T17:59:41Z 10000-01-01 1985 In this thesis we study electronic and optical properties of GaAs-AlGaAs semiconductors quantum wells. The light and heavy hole subbands are strongly hybridized and this subband mixing has important effects on electronic and optical properties. A systematic study of the mixing effects on valence subband structure, exciton binding energies and oscillator strengths, and absorption spectra is undertaken using a multiband effective mass method which takes valence subband mixing into account. In addition the method is extended to study uniaxial stress and modulation doping effects. Finally, the binding energies and radiative lifetimes of bound excitons in direct gap semiconductors are studied in a simple model as a prelude to the study of bound excitons in quantum wells. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-03T17:59:41Z No. of bitstreams: 1 1985_sanders.pdf: 3658255 bytes, checksum: f022caf8626682653a0de7ae69e92429 (MD5) Made available in DSpace on 2011-06-03T17:59:41Z (GMT). No. of bitstreams: 1 1985_sanders.pdf: 3658255 bytes, checksum: f022caf8626682653a0de7ae69e92429 (MD5) Previous issue date: 1985 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-03T17:59:41Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:15:18-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only 886558 http://hdl.handle.net/2142/25271 en 1985 Gary Donald Sanders semiconductor quantum wells GaAs-AlGaAs semiconductors subband mixing valence subband structure exciton binding oscillator strengths absorption spectra Electronic and optical properties of semiconductor quantum wells Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.