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arXiv · 1401.6851

Oxygen vacancy and EC - 1 eV electron trap in ZnO

Gauthier Chicot·Pierre Muret·Julien Pernot·J. L. Santailler·Guy Feuillet
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Abstract

Fourier transform deep level transient spectroscopy has been performed between 80 K and 550 K in five n-type ZnO samples grown by different techniques. The capture cross section and ionization energy of four electron traps have been deduced from Arrhenius diagrams. A trap 1 eV below the conduction band edge is systematically observed in the five samples with a large apparent capture cross section for electrons (1.6 $\pm$ 0.4 x 10 - 13 cm2) indicating a donor character. The assignment of this deep level to the oxygen vacancy is discussed on the basis of available theoretical predictions.

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Gauthier Chicot, Pierre Muret, Julien Pernot, J. L. Santailler, Guy Feuillet. 2014-01-27. Oxygen vacancy and EC - 1 eV electron trap in ZnO. https://doi.org/10.1088/0022-3727/47/46/465103

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