1. Linear spectroscopy and exciton binding energies in (Zn, Cd)Se-ZnSe heterostructures
- Author
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Sandrine Sanchez, Thierry Cloitre, Pierre Bigenwald, Fabio Liaci, Bernard Gil, Roger-Louis Aulombard, Rachid Essaid, Groupe d'étude des semiconducteurs (GES), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Avignon Université (AU), Department of Geological Sciences [Stanford] (GS), Stanford EARTH, and Stanford University-Stanford University
- Subjects
Photoluminescence ,Materials science ,Condensed Matter::Other ,Mechanical Engineering ,Exciton ,Context (language use) ,Heterojunction ,02 engineering and technology ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Molecular physics ,Condensed Matter::Materials Science ,Mechanics of Materials ,Excited state ,0103 physical sciences ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,General Materials Science ,Atomic physics ,010306 general physics ,0210 nano-technology ,Electronic band structure ,Spectroscopy ,Quantum well - Abstract
International audience; We report here on the study of the optical properties of ZnCdSe-ZnSe quantum structures elaborated by metal-organic chemical vapour deposition on GaAs substrates. The band structure of these samples is experimentally investigated by means of photoluminescence and photoreflectance spectroscopy. This makes clear the relationship between strain, carrier confinement and excitonic effects. We have computed for the first time heavy- and light-hole excitons associated with ground and excited states sub-bands, in the context of a self-consistent two-parameter trial function.
- Published
- 1997
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