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Electric field dependence of the electron mobility in bulk wurtzite ZnO

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Abstract

The electric field dependence of the electron mobility in bulk wurtzite zinc oxide (ZnO) material is studied. The low-field electron mobility is calculated as a function of doping concentration and lattice temperature. The results show that above nearly 50 K the electrical conduction is governed by activation through the bulk material and the conduction is then influenced by both lattice and impurity scattering mechanisms. The high-field characteristics are also considered. The transition between the low-field and high-field regions is specified. The negative differential mobility for bulk ZnO at room temperature is observed at electric fields above 280 kV/cm.

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Acknowledgements

The author wishes to express his appreciation to the Deanship of Scientific Research at King Saud University, Saudi Arabia, for funding this work. The author also thanks Prof S Abboudy and Prof L Abulnasr for their valuable comments and suggestions.

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Authors and Affiliations

  1. Science Department, Teachers College, King Saud University, Riyadh, 11451, Saudi Arabia

    K ALFARAMAWI

  2. Physics Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt

    K ALFARAMAWI

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  1. K ALFARAMAWI
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Correspondence to K ALFARAMAWI.

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ALFARAMAWI, K. Electric field dependence of the electron mobility in bulk wurtzite ZnO. Bull Mater Sci 37, 1603–1606 (2014). https://doi.org/10.1007/s12034-014-0720-z

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  • DOI: https://doi.org/10.1007/s12034-014-0720-z

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