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Exciton dynamics in ZnSe/ZnSxSe1-x superlattices

Abstract:
Time-resolved photoluminescence experiments in a wide carrier density range up to and beyond the threshold for stimulated emission in ZnSe/ZnSxSe1-x. superlattices are presented. Different localisation mechanisms of free excitons are identified giving rise to different radiative recombination channels. At high carrier density localised energy states merge into miniband that allows for exciton-exciton interaction, such as screening of the free-exciton absorption and inelastic exciton-exciton scattering.
Publication status:
Published

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Publisher copy:
10.1007/BF02457222

Authors


Dabbicco, M More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
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Volume:
17
Issue:
11-12
Pages:
1429-1433
Publication date:
1995
DOI:
ISSN:
0392-6737
URN:
uuid:8d4b79a5-c7cb-4a45-b0af-324ca248857c
Source identifiers:
1845
Local pid:
pubs:1845

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