Internal field engineering in CdZnO/MgZnO quantum well structures

Seoung Hwan Park, Doyeol Ahn

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17 Scopus citations

Abstract

Electronic and optical properties of CdZnO/MgZnO quantum well (QW) structures with the depolarization of an internal field are investigated by using the non-Markovian gain model. The Mg composition is selected to give zero internal field for a given Cd composition. The Mg content to give zero internal field is found to increase with increasing Cd content. The peak gain is improved with increasing Cd composition in a range of Cd<0.07 because a quasi-Fermi-level separation rapidly increases with the Cd composition. However, it begins to decrease when the Cd composition exceeds 0.07.

Original languageEnglish
Article number083507
JournalApplied Physics Letters
Volume94
Issue number8
DOIs
StatePublished - 2009

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