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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 1,
  • Issue 11,
  • pp. 668-670
  • (2003)

Growth and optical characteristics of ZnCdSe/ZnSe QWs on Si substrate with ZnO buffer

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Abstract

In this paper, the growth and characteristics of ZnCdSe/ZnSe quantum wells (QWs) prepared on ZnOSi (111) templates are reported. An oriented ZnO thin film with a smooth surface was employed to be the buffer layer for the ZnCdSe/ZnSe QWs growth. Scanning electron microscopy (SEM) patterns showed that the ZnO buffer layer improved the smoothness of the ZnCdSe/ZnSe sample. Up to the 3rd longitudinal optical phonon of Zn0:56Cd0:44Se observed in Raman spectra suggests that the crystalquality of ZnCdSe/ZnSe QWs is reasonably good. The influence of quantum confinement effect on exciton characters of the QWs was also demonstrated.

© 2005 Chinese Optics Letters

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