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Electronic structure of ZnO wurtzite quantum wires

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  • J. B. Xia
  • X. W. Zhang

Abstract

The electronic structure and optical properties of ZnO wurtzite quantum wires with radius R≥3 nm are studied in the framework of six-band effective-mass envelope function theory. The hole effective-mass parameters of ZnO wurtzite material are calculated by the empirical pseudopotential method. It is found that the electron states are either two-fold or four-fold degenerate. There is a dark exciton effect when the radius R of the ZnO quantum wires is in the range of [3,19.1] nm (dark range in our model). The dark ranges of other wurtzite semiconductor quantum wires are calculated for comparison. The dark range becomes smaller when the |Δ so | is larger, which also happens in the quantum-dot systems. The linear polarization factor of ZnO quantum wires is larger when the temperature is higher. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Suggested Citation

  • J. B. Xia & X. W. Zhang, 2006. "Electronic structure of ZnO wurtzite quantum wires," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 49(4), pages 415-420, February.
    • Handle: RePEc:spr:eurphb:v:49:y:2006:i:4:p:415-420
    DOI: 10.1140/epjb/e2006-00093-1
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