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Electronic structure of ZnO wurtzite quantum wires

Listed author(s):
  • J. B. Xia
  • X. W. Zhang


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    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

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    Article provided by Springer & EDP Sciences in its journal The European Physical Journal B - Condensed Matter and Complex Systems.

    Volume (Year): 49 (2006)
    Issue (Month): 4 (February)
    Pages: 415-420

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    Handle: RePEc:spr:eurphb:v:49:y:2006:i:4:p:415-420
    DOI: 10.1140/epjb/e2006-00093-1
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