Electronic and optical properties of ZnOS/ZnO quantum-well structures with polarization effects

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초록

The optical properties of ZnOS/ZnO quantum-well (QW) structures, considering piezoelectric and spontaneous polarizations, are investigated by using many-body effects. The ZnOS/ZnO QW structure is found to have small optical gain because SP polarizations have a negative sign in the well and increase with the inclusion of S. These results demonstrate that ZnOS/ZnO QW structure have a strong internal field. This structure offers further flexibility for band-gap engineering and potentially facilitates p-type doping of ZnO-based light-emitting diodes.

키워드

Quantum wellInternal fieldOptical gainSEMICONDUCTORS
제목
Electronic and optical properties of ZnOS/ZnO quantum-well structures with polarization effects
저자
Jeon, H. C.Kumar, SunilLee, S. J.Kang, T. W.Park, S. H.
DOI
10.3938/jkps.69.370
발행일
2016-08
유형
Article
저널명
Journal of the Korean Physical Society
69
3
페이지
370 ~ 372